Adobe Photoshop 6.0 was working just fine until a week ago. What I am experiencing now is system-wide lag (hanging) when task switching to Photoshop after not using it for 15-20 minutes. The "lag" lasts for about 10 seconds before Windows eventually decides to hand control over to Photoshop. I've run AdAware, defragged all my partitions, run my anti-virus software, run some custom software I wrote, checked Event Viewer, and have come up completely empty-handed.
There are two things I can think of that would be causing this to happen since I don't install random software. It started occurring shortly after installing the latest set of Microsoft updates - which included that "Malicious Software Removal Tool" that is supposed to always be running as a NT service (That's really bizarre - I can't find it listed after a quick glance at the NT service list...). The only other application I recently installed was Half-Life 2, but Steam isn't running at all.
Suggestions would be appreciated. I can't submit logs for security reasons.