I'm using the trial of Photoshop CS6 extended but shortly after I start working on a document, I get a warning that it is taking up high CPU. When I check the windows task manager I can see that it's running at 25% CPU contstantly. I have a quad core so I'm guessing it maxes out one core? The files I'm working on are tiny 40x40 px icons so I don't see any reason this should be happening. If I can't get this resovled I'll probably just stick with my current version of PS. Any suggestions?
Sorry if I wasn't clear on this, but the process IS photoshop that is taking up 25%. Even if I close all the documents and don't do anything it just hangs there. And I have tried rebooting several times and I've updated all my video card drivers. I've also tried to edit the performance preferences to turn everythign down and it doesn't change anything.
I have problem too in photoshop CS 5.5 and 6. I am checking method from: http://forum.wacom.eu/viewtopic.php?t=9252&p=37820
At last, some progress!
After a few experiments, I finally managed to isolate the the problem.
In CS5, the cause was the option "Anti-alias Guides and Paths" under the OpenGL Settings.
CS6 appears to be working in OpenGL Basic Mode with all options disabled.
Not sure why that issue happens only with the wacom drivers installed, but I'm glad it has been resolved (for the record, I have 2x GTX 560 Ti GPU's).
I had a vaguely similar problem some time ago, but with Premiere Pro CS5. When it was closed it would hang on to 25% CPU usage, and nothing would free it up short of a restart. Restarting Premiere Pro CS5 would result in another 25% CPU usage, and a third time yet again, taking the CPU to 75% usage.
It turned out to be the video driver strangely enough.