P: Changing icons in the History panel

Thanks for the reply.  My Photoshop System info is pasted at the bottom of this post.

Just FYI, I use a different machine entirely at work and no matter what station I use my account on, this problem occurs. I DO sync my settings regularly between work and home, if that means anything.

Adobe Photoshop Version: 2015.1.2 20160113.r.355 2016/01/13:23:59:59 CL 1059143  x64Operating System: Windows 8.1 64-bit
Version: 8.1
System architecture: Intel CPU Family:6, Model:12, Stepping:3 with MMX, SSE Integer, SSE FP, SSE2, SSE3, SSE4.1, SSE4.2, AVX, AVX2, HyperThreading
Physical processor count: 4
Logical processor count: 8
Processor speed: 3400 MHz
Built-in memory: 16268 MB
Free memory: 11105 MB
Memory available to Photoshop: 14482 MB
Memory used by Photoshop: 80 %
Modifier Palette: Enabled.
Design Space: Disabled.
Artboards: Enabled.
3D Multitone Printing: Disabled.
Highbeam: Enabled.
Image tile size: 1024K
Image cache levels: 4
Font Preview: Extra Large
TextComposer: Latin
Display: 1
Display Bounds: top=0, left=0, bottom=1080, right=1920
Display: 2
Display Bounds: top=0, left=1920, bottom=1080, right=3840
OpenGL Drawing: Enabled.
OpenGL Allow Old GPUs: Not Detected.
OpenGL Drawing Mode: Advanced
OpenGL Allow Normal Mode: True.
OpenGL Allow Advanced Mode: True.
AIFCoreInitialized=1
AIFOGLInitialized=1
OGLContextCreated=1
NumGLGPUs=2
NumCLGPUs=2
glgpu[0].GLVersion="3.0"
glgpu[0].IsIntegratedGLGPU=0
glgpu[0].GLMemoryMB=3072
glgpu[0].GLName="NVIDIA GeForce GTX 780"
glgpu[0].GLVendor="NVIDIA Corporation"
glgpu[0].GLVendorID=4318
glgpu[0].GLDriverVersion="10.18.13.6451"
glgpu[0].GLRectTextureSize=16384
glgpu[0].GLRenderer="GeForce GTX 780/PCIe/SSE2"
glgpu[0].GLRendererID=4100
glgpu[0].HasGLNPOTSupport=1
glgpu[0].GLDriver="nvd3dumx.dll,nvwgf2umx.dll,nvwgf2umx.dll,nvd3dum,nvwgf2um,nvwgf2um"
glgpu[0].GLDriverDate="20160307000000.000000-000"
glgpu[0].CanCompileProgramGLSL=1
glgpu[0].GLFrameBufferOK=1
glgpu[0].glGetString[GL_SHADING_LANGUAGE_VERSION]="4.50 NVIDIA"
glgpu[0].glGetProgramivARB[GL_FRAGMENT_PROGRAM_ARB][GL_MAX_PROGRAM_INSTRUCTIONS_ARB]=[65536]
glgpu[0].glGetIntegerv[GL_MAX_TEXTURE_UNITS]=[4]
glgpu[0].glGetIntegerv[GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS]=[192]
glgpu[0].glGetIntegerv[GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS]=[32]
glgpu[0].glGetIntegerv[GL_MAX_TEXTURE_IMAGE_UNITS]=[32]
glgpu[0].glGetIntegerv[GL_MAX_DRAW_BUFFERS]=[8]
glgpu[0].glGetIntegerv[GL_MAX_VERTEX_UNIFORM_COMPONENTS]=[4096]
glgpu[0].glGetIntegerv[GL_MAX_FRAGMENT_UNIFORM_COMPONENTS]=[4096]
glgpu[0].glGetIntegerv[GL_MAX_VARYING_FLOATS]=[124]
glgpu[0].glGetIntegerv[GL_MAX_VERTEX_ATTRIBS]=[16]
glgpu[0].extension[AIF::OGL::GL_ARB_VERTEX_PROGRAM]=1
glgpu[0].extension[AIF::OGL::GL_ARB_FRAGMENT_PROGRAM]=1
glgpu[0].extension[AIF::OGL::GL_ARB_VERTEX_SHADER]=1
glgpu[0].extension[AIF::OGL::GL_ARB_FRAGMENT_SHADER]=1
glgpu[0].extension[AIF::OGL::GL_EXT_FRAMEBUFFER_OBJECT]=1
glgpu[0].extension[AIF::OGL::GL_ARB_TEXTURE_RECTANGLE]=1
glgpu[0].extension[AIF::OGL::GL_ARB_TEXTURE_FLOAT]=1
glgpu[0].extension[AIF::OGL::GL_ARB_OCCLUSION_QUERY]=1
glgpu[0].extension[AIF::OGL::GL_ARB_VERTEX_BUFFER_OBJECT]=1
glgpu[0].extension[AIF::OGL::GL_ARB_SHADER_TEXTURE_LOD]=1
clgpu[0].CLPlatformVersion="1.2 "
clgpu[0].CLDeviceVersion="1.2 "
clgpu[0].IsIntegratedCLGPU=1
clgpu[0].CLMemoryMB=1752
clgpu[0].CLName="Intel(R) HD Graphics 4600"
clgpu[0].CLVendor="Intel(R) Corporation"
clgpu[0].CLVendorID=32902
clgpu[0].CLDriverVersion="10.18.10.3308"
clgpu[0].CUDASupported=0
clgpu[0].CLBandwidth=2.57718e+010
clgpu[0].CLCompute=86.0906
glgpu[1].GLVersion="3.0"
glgpu[1].IsIntegratedGLGPU=1
glgpu[1].GLMemoryMB=2112
glgpu[1].GLName="Intel(R) HD Graphics 4600"
glgpu[1].GLVendor="NVIDIA Corporation"
glgpu[1].GLVendorID=32902
glgpu[1].GLDriverVersion="10.18.10.3308"
glgpu[1].GLRectTextureSize=16384
glgpu[1].GLRenderer="GeForce GTX 780/PCIe/SSE2"
glgpu[1].GLRendererID=1042
glgpu[1].HasGLNPOTSupport=1
glgpu[1].GLDriver="igdumdim64.dll,igd10iumd64.dll,igd10iumd64.dll,igdumdim32,igd10iumd32,igd10iumd32"
glgpu[1].GLDriverDate="20131001000000.000000-000"
glgpu[1].CanCompileProgramGLSL=1
glgpu[1].GLFrameBufferOK=1
glgpu[1].glGetString[GL_SHADING_LANGUAGE_VERSION]="4.50 NVIDIA"
glgpu[1].glGetProgramivARB[GL_FRAGMENT_PROGRAM_ARB][GL_MAX_PROGRAM_INSTRUCTIONS_ARB]=[65536]
glgpu[1].glGetIntegerv[GL_MAX_TEXTURE_UNITS]=[4]
glgpu[1].glGetIntegerv[GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS]=[192]
glgpu[1].glGetIntegerv[GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS]=[32]
glgpu[1].glGetIntegerv[GL_MAX_TEXTURE_IMAGE_UNITS]=[32]
glgpu[1].glGetIntegerv[GL_MAX_DRAW_BUFFERS]=[8]
glgpu[1].glGetIntegerv[GL_MAX_VERTEX_UNIFORM_COMPONENTS]=[4096]
glgpu[1].glGetIntegerv[GL_MAX_FRAGMENT_UNIFORM_COMPONENTS]=[4096]
glgpu[1].glGetIntegerv[GL_MAX_VARYING_FLOATS]=[124]
glgpu[1].glGetIntegerv[GL_MAX_VERTEX_ATTRIBS]=[16]
glgpu[1].extension[AIF::OGL::GL_ARB_VERTEX_PROGRAM]=1
glgpu[1].extension[AIF::OGL::GL_ARB_FRAGMENT_PROGRAM]=1
glgpu[1].extension[AIF::OGL::GL_ARB_VERTEX_SHADER]=1
glgpu[1].extension[AIF::OGL::GL_ARB_FRAGMENT_SHADER]=1
glgpu[1].extension[AIF::OGL::GL_EXT_FRAMEBUFFER_OBJECT]=1
glgpu[1].extension[AIF::OGL::GL_ARB_TEXTURE_RECTANGLE]=1
glgpu[1].extension[AIF::OGL::GL_ARB_TEXTURE_FLOAT]=1
glgpu[1].extension[AIF::OGL::GL_ARB_OCCLUSION_QUERY]=1
glgpu[1].extension[AIF::OGL::GL_ARB_VERTEX_BUFFER_OBJECT]=1
glgpu[1].extension[AIF::OGL::GL_ARB_SHADER_TEXTURE_LOD]=1
clgpu[1].CLPlatformVersion="1.2"
clgpu[1].CLDeviceVersion="1.2 CUDA"
clgpu[1].IsIntegratedCLGPU=0
clgpu[1].CLMemoryMB=3072
clgpu[1].CLName="GeForce GTX 780"
clgpu[1].CLVendor="NVIDIA Corporation"
clgpu[1].CLVendorID=4318
clgpu[1].CLDriverVersion="364.51"
clgpu[1].CUDASupported=1
clgpu[1].CUDAVersion="8.0.0"
clgpu[1].CLBandwidth=2.19221e+011
clgpu[1].CLCompute=1158.61
License Type: Subscription
Serial number: 90970404929412677140
Application folder: C:\Program Files\Adobe\Adobe Photoshop CC 2015\
Temporary file path: C:\Users\CHUCKC~1\AppData\Local\Temp\
Photoshop scratch has async I/O enabled
Scratch volume(s):
  Startup, 223.2G, 43.9G free
Required Plug-ins folder: C:\Program Files\Adobe\Adobe Photoshop CC 2015\Required\Plug-Ins\
Primary Plug-ins folder: C:\Program Files\Adobe\Adobe Photoshop CC 2015\Plug-ins\

Installed components:
   A3DLIBS.dll   A3DLIB Dynamic Link Library   9.2.0.112   
   ACE.dll   ACE 2015/09/09-18:52:48   79.567158   79.567158
   AdbePM.dll   PatchMatch 0000/00/00-00:00:00   1.   1.
   AdobeLinguistic.dll   Adobe Linguisitc Library   9.0.0   
   AdobeOwl.dll   Adobe Owl   5.2.9   
   AdobePDFL.dll   PDFL 2015/09/12-01:10:45   79.156620   79.156620
   AdobePIP.dll   Adobe Product Improvement Program   7.3.1.70   
   AdobeSVGAGM.dll   AdobeSVGAGM   79.566705   79.566705
   AdobeXMP.dll   Adobe XMP Core 2015/09/10-01:10:20   79.158325   79.158325
   AdobeXMPFiles.dll   Adobe XMP Files 2015/09/10-01:10:20   79.158325   79.158325
   AdobeXMPScript.dll   Adobe XMP Script 2015/09/10-01:10:20   79.158325   79.158325
   adobe_caps.dll   Adobe CAPS   9,0,0,28   
   AGM.dll   AGM 2015/09/09-18:52:48   79.567158   79.567158
   ahclient.dll    AdobeHelp Dynamic Link Library   2.0.0.2   
   AIDE.dll   AIDE 2015/10/15-11:58:31   79.568000   79.568000
   amtlib.dll   AMTLib (64 Bit)   9.0.0.89BuildVersion: 9.0; BuildDate: Tue Aug 25 2015 7:30:38)   1.000000
   ARE.dll   ARE 2015/09/09-18:52:48   79.567158   79.567158
   AXE8SharedExpat.dll   AXE8SharedExpat 2015/03/13-23:40:54   79.562390   79.562390
   AXEDOMCore.dll   AXEDOMCore 2015/03/13-23:40:54   79.562390   79.562390
   Bib.dll   BIB 2015/09/09-18:52:48   79.567158   79.567158
   BIBUtils.dll   BIBUtils 2015/09/09-18:52:48   79.567158   79.567158
   boost_date_time.dll   photoshopdva   8.0.0   
   boost_signals.dll   photoshopdva   8.0.0   
   boost_system.dll   photoshopdva   8.0.0   
   boost_threads.dll   photoshopdva   8.0.0   
   cg.dll   NVIDIA Cg Runtime   3.0.00007   
   cgGL.dll   NVIDIA Cg Runtime   3.0.00007   
   CIT.dll   Adobe CIT   2.3.7.33275   2.3.7.33275
   CITThreading.dll   Adobe CITThreading   2.3.7.33275   2.3.7.33275
   CoolType.dll   CoolType 2015/09/09-18:52:48   79.567158   79.567158
   dnssd.dll   Bonjour   3,0,0,2   
   dvaaudiodevice.dll   photoshopdva   8.0.0   
   dvacore.dll   photoshopdva   8.0.0   
   dvamarshal.dll   photoshopdva   8.0.0   
   dvamediatypes.dll   photoshopdva   8.0.0   
   dvametadata.dll   photoshopdva   8.0.0   
   dvametadataapi.dll   photoshopdva   8.0.0   
   dvametadataui.dll   photoshopdva   8.0.0   
   dvaplayer.dll   photoshopdva   8.0.0   
   dvatransport.dll   photoshopdva   8.0.0   
   dvaui.dll   photoshopdva   8.0.0   
   dvaunittesting.dll   photoshopdva   8.0.0   
   dynamiclink.dll   photoshopdva   8.0.0   
   ExtendScript.dll   ExtendScript 2015/04/17-16:55:22   80.1017022   80.1017022
   icucnv40.dll   International Components for Unicode 2014/10/31-16:52:45    Build gtlib_6.0.21339   
   icudt40.dll   International Components for Unicode 2014/10/31-16:52:45    Build gtlib_6.0.21339   
   icuuc40.dll   International Components for Unicode 2014/10/31-16:52:45    Build gtlib_6.0.21339   
   igestep30.dll   IGES Reader   9.3.0.113   
   imslib.dll   IMSLib DLL   9.0.1.14   
   JP2KLib.dll   JP2KLib 2015/08/14-01:13:58   79.258941   79.258941
   libifcoremd.dll   Intel(r) Visual Fortran Compiler   10.0 (Update A)   
   libiomp5md.dll   Intel(R) OpenMP* Runtime Library   5.0   
   libmmd.dll   Intel(r) C Compiler, Intel(r) C++ Compiler, Intel(r) Fortran Compiler   12.0   
   LogSession.dll   LogSession   7.3.1.70   
   manta.dll   Manta   1.   1.
   mediacoreif.dll   photoshopdva   8.0.0   
   MPS.dll   MPS 2015/08/14-01:13:58   79.566687   79.566687
   pdfsettings.dll   Adobe PDFSettings   1.04   
   Photoshop.dll   Adobe Photoshop CC 2015   16.1.2   
   Plugin.dll   Adobe Photoshop CC 2015   16.1.2   
   PlugPlugExternalObject.dll   Adobe(R) CEP PlugPlugExternalObject Standard Dll (64 bit)   6.1.0   
   PlugPlugOwl.dll   Adobe(R) CSXS PlugPlugOwl Standard Dll (64 bit)   6.1.0.164   
   PSArt.dll   Adobe Photoshop CC 2015   16.1.2   
   PSViews.dll   Adobe Photoshop CC 2015   16.1.2   
   SCCore.dll   ScCore 2015/04/17-16:55:22   80.1017022   80.1017022
   SVGRE.dll   SVGRE   79.566690   79.566690
   svml_dispmd.dll   Intel(r) C Compiler, Intel(r) C++ Compiler, Intel(r) Fortran Compiler   12.0   
   tbb.dll   Intel(R) Threading Building Blocks for Windows   4, 3, 2015, 0408   
   tbbmalloc.dll   Intel(R) Threading Building Blocks for Windows   4, 3, 2015, 0408   
   TfFontMgr.dll   FontMgr   9.3.0.113   
   TfKernel.dll   Kernel   9.3.0.113   
   TFKGEOM.dll   Kernel Geom   9.3.0.113   
   TFUGEOM.dll   Adobe, UGeom©   9.3.0.113   
   updaternotifications.dll   Adobe Updater Notifications Library   9.0.0.15 (BuildVersion: 1.0; BuildDate: BUILDDATETIME)   9.0.0.15
   VulcanControl.dll   Vulcan Application Control Library   5.2.0.35   
   VulcanMessage5.dll   Vulcan Message Library   5.2.0.35   
   WRServices.dll   WRServices Fri Jul 31 2015 07:50:10   Build 0.21834   0.21834
   wu3d.dll   U3D Writer   9.3.0.113   


Required plug-ins:

   3D Studio 16.1.2 (2015.1.2 x001 x003)
   Accented Edges 16.1.2
   Adaptive Wide Angle 16.1.2
   Angled Strokes 16.1.2
   Average 16.1.2 (2015.1.2 x001 x003)
   Bas Relief 16.1.2
   BMP 16.1.2
   Camera Raw 9.4
   Camera Raw Filter 9.4
   Chalk & Charcoal 16.1.2
   Charcoal 16.1.2
   Chrome 16.1.2
   Cineon 16.1.2 (2015.1.2 x001 x003)
   Clouds 16.1.2 (2015.1.2 x001 x003)
   Collada 16.1.2 (2015.1.2 x001 x003)
   Color Halftone 16.1.2
   Colored Pencil 16.1.2
   CompuServe GIF 16.1.2
   Conté Crayon 16.1.2
   Craquelure 16.1.2
   Crop and Straighten Photos 16.1.2 (2015.1.2 x001 x003)
   Crop and Straighten Photos Filter 16.1.2
   Crosshatch 16.1.2
   Crystallize 16.1.2
   Cutout 16.1.2
   Dark Strokes 16.1.2
   De-Interlace 16.1.2
   Dicom 16.1.2
   Difference Clouds 16.1.2 (2015.1.2 x001 x003)
   Diffuse Glow 16.1.2
   Displace 16.1.2
   Dry Brush 16.1.2
   Eazel Acquire 16.1.2 (2015.1.2 x001 x003)
   Entropy 16.1.2 (2015.1.2 x001 x003)
   Export Color Lookup Tables NO VERSION
   Extrude 16.1.2
   FastCore Routines 16.1.2 (2015.1.2 x001 x003)
   Fibers 16.1.2
   Film Grain 16.1.2
   Filter Gallery 16.1.2
   Flash 3D 16.1.2 (2015.1.2 x001 x003)
   Fresco 16.1.2
   Glass 16.1.2
   Glowing Edges 16.1.2
   Google Earth 4 16.1.2 (2015.1.2 x001 x003)
   Grain 16.1.2
   Graphic Pen 16.1.2
   Halftone Pattern 16.1.2
   HDRMergeUI 16.1.2
   HSB/HSL 16.1.2
   IFF Format 16.1.2
   IGES 16.1.2 (2015.1.2 x001 x003)
   Ink Outlines 16.1.2
   JPEG 2000 16.1.2
   Kurtosis 16.1.2 (2015.1.2 x001 x003)
   Lens Blur 16.1.2
   Lens Correction 16.1.2
   Lens Flare 16.1.2
   Liquify 16.1.2
   Matlab Operation 16.1.2 (2015.1.2 x001 x003)
   Maximum 16.1.2 (2015.1.2 x001 x003)
   Mean 16.1.2 (2015.1.2 x001 x003)
   Measurement Core 16.1.2 (2015.1.2 x001 x003)
   Median 16.1.2 (2015.1.2 x001 x003)
   Mezzotint 16.1.2
   Minimum 16.1.2 (2015.1.2 x001 x003)
   MMXCore Routines 16.1.2 (2015.1.2 x001 x003)
   Mosaic Tiles 16.1.2
   Multiprocessor Support 16.1.2 (2015.1.2 x001 x003)
   Neon Glow 16.1.2
   Note Paper 16.1.2
   NTSC Colors 16.1.2 (2015.1.2 x001 x003)
   Ocean Ripple 16.1.2
   OpenEXR 16.1.2
   Paint Daubs 16.1.2
   Palette Knife 16.1.2
   Patchwork 16.1.2
   Paths to Illustrator 16.1.2
   PCX 16.1.2 (2015.1.2 x001 x003)
   Photocopy 16.1.2
   Photoshop 3D Engine 16.1.2 (2015.1.2 x001 x003)
   Photoshop Touch 14.0
   Picture Package Filter 16.1.2 (2015.1.2 x001 x003)
   Pinch 16.1.2
   Pixar 16.1.2 (2015.1.2 x001 x003)
   Plaster 16.1.2
   Plastic Wrap 16.1.2
   PLY 16.1.2 (2015.1.2 x001 x003)
   PNG 16.1.2
   Pointillize 16.1.2
   Polar Coordinates 16.1.2
   Portable Bit Map 16.1.2 (2015.1.2 x001 x003)
   Poster Edges 16.1.2
   PRC 16.1.2 (2015.1.2 x001 x003)
   Radial Blur 16.1.2
   Radiance 16.1.2 (2015.1.2 x001 x003)
   Range 16.1.2 (2015.1.2 x001 x003)
   Render Color Lookup Grid NO VERSION
   Reticulation 16.1.2
   Ripple 16.1.2
   Rough Pastels 16.1.2
   Save for Web 16.1.2
   ScriptingSupport 16.1.2
   Shake Reduction 16.1.2
   Shear 16.1.2
   Skewness 16.1.2 (2015.1.2 x001 x003)
   Smart Blur 16.1.2
   Smudge Stick 16.1.2
   Solarize 16.1.2 (2015.1.2 x001 x003)
   Spaces 16.1.2
   Spatter 16.1.2
   Spherize 16.1.2
   Sponge 16.1.2
   Sprayed Strokes 16.1.2
   Stained Glass 16.1.2
   Stamp 16.1.2
   Standard Deviation 16.1.2 (2015.1.2 x001 x003)
   STL 16.1.2 (2015.1.2 x001 x003)
   Sumi-e 16.1.2
   Summation 16.1.2 (2015.1.2 x001 x003)
   Targa 16.1.2
   Texturizer 16.1.2
   Tiles 16.1.2
   Torn Edges 16.1.2
   Twirl 16.1.2
   U3D 16.1.2 (2015.1.2 x001 x003)
   Underpainting 16.1.2
   Vanishing Point 16.1.2
   Variance 16.1.2 (2015.1.2 x001 x003)
   Virtual Reality Modeling Language | VRML 16.1.2 (2015.1.2 x001 x003)
   Water Paper 16.1.2
   Watercolor 16.1.2
   Wave 16.1.2
   Wavefront|OBJ 16.1.2 (2015.1.2 x001 x003)
   WIA Support 16.1.2 (2015.1.2 x001 x003)
   Wind 16.1.2
   Wireless Bitmap 16.1.2 (2015.1.2 x001 x003)
   ZigZag 16.1.2

Optional and third party plug-ins:

   PortraitPro 1, 6, 1, 0

Plug-ins that failed to load: NONE

Extensions:

   Recent Files  1.1.0
      C:\Program Files (x86)\Common Files\Adobe\CEP\extensions\CCX_START_EXTENSION_1_1_0_4\index.html
   Libraries  2.1.24
      C:\Program Files\Adobe\Adobe Photoshop CC 2015\Required\CEP\extensions\com.adobe.DesignLibraryPanel.html\index.html
   Start  1.1.0
      C:\Program Files (x86)\Common Files\Adobe\CEP\extensions\CCX_START_EXTENSION_1_1_0_4\index.html
   Adobe Color Themes  6.1.0
      C:\Program Files\Adobe\Adobe Photoshop CC 2015\Required\CEP\extensions\com.adobe.KulerPanel.html\index.html
   Export As  2.4.0
      C:\Program Files\Adobe\Adobe Photoshop CC 2015\Required\CEP\extensions\com.adobe.webpa.crema\PSPanel\dialog.html
   Device Preview  1.1.3
      C:\Program Files\Adobe\Adobe Photoshop CC 2015\Required\CEP\extensions\com.adobe.preview\PSPanel\panel.html
   Share on Behance  3.0.0
      C:\Program Files\Adobe\Adobe Photoshop CC 2015\Required\CEP\extensions\com.adobe.behance.shareonbehance.html\index.html
   com.adobe.preview.loader  1.1.3
      C:\Program Files\Adobe\Adobe Photoshop CC 2015\Required\CEP\extensions\com.adobe.preview\PSLoader\loader.html
   Export As  2.4.0
      C:\Program Files\Adobe\Adobe Photoshop CC 2015\Required\CEP\extensions\com.adobe.webpa.crema\PSPanel\dialog.html

Installed TWAIN devices: NONE