Photoshop keeps hanging on a powerful PC

Ah! I use an XP-pen tablet but I bet it's almost exactly the same. I'll try what you suggest.

Thank you 🙂 

Do you use a Wacom tablet? I had the same problem you are describing and unticking the 'Use Windows Ink' option in Wacom Tablet Properties > Mapping solved it.

Hi again,

I did a fresh NVidia driver and install and Potoshop is still becoming unresponsive and needs to be restarted.
Everything else runs perfectly and Photoshop doesn't crash - I just can't move anything around teh screen, or zoom ...or use any tools actually.
My RTX 3090 Ti should handle this program easily. It runs After effects and Blender like a dream.

Ha, sorry - yes, I meant 3000px X 3000px (not 300).
I'll try the driver install. This chip donesn't have a gpu component so that bit's ok.

Thank you!

300 x 300 what?

Brush/zoom is obviously GPU-related. Update or reinstall the driver from NVidia's site. Make sure to install the studio driver, not the game ready, and perform a "clean install" to remove all traces of the old. Uncheck all the extra components in the driver package, you don't need them. Just install the base driver.

I take it that this isn't a dual-GPU machine. But if it is, you need to disable the integrated GPU.

https://helpx.adobe.com/photoshop/kb/troubleshoot-gpu-graphics-card.html