RGB values not shown in Camera Raw histogram

[NRC13]

Camera Raw 14.1.0.993 and Windows 10

I no longer see the RGB values displayed in the Camera Raw histogram.  It used to be that as I moved the Zoom tool, Hand tool, or White Balance tool over the image, the RGB values were shown above the histogram.  I am sure it was working yesterday.  Today they are not there.  I can still use the color sampler tool to get the RGB values at selected fixed places on the image.  Any thoughts?

[NRC13]

Additional information:  Looks like this is related to the graphics card.  I have a NVIDIA GeForce GTX1060 6GB card.  If "Use Graphics Processor" is set to Auto in the Camera Raw performance tab, I get a message that the system supports full acceleration,  but then RGB values are not displayed above the histogram.  If I set "Use Graphics Processor" to Off I get a message that Graphics acceleration is disabled but then RGB values are displayed above the histogram.  

[TheDigitalDog]

If turning OFF GPU works, it's a GPU bug and you need to contact the manufacturer or find out if there's an updated driver for it. 
Also see: https://helpx.adobe.com/photoshop/kb/acr-gpu-faq.html

[NRC13]

Thanks.  I installed the latest driver but problem still there.  I have reported it to Nvidia.