Hi, I have Photoshop CS2 as part of the Creative Suite.  I recently started having problems with it heavily lagging.  I've tried the solutions I've found at the Adobe Forums, but it doesn't seem to work.  I've done three complete re-installs (including the OS, WinXP Pro) but the problem keeps occurring.  I know I didn't have this issue before and I haven't installed anything that wasn't installed before. I should also state that none of the other products in the suite are experiencing this problem.  Adobes' next solutions is to upgrade to CS3.  If anybody has any insight on this problem, please help me.

Computer specs: AMD-FX 55 2.61 GHz, Nvidia GeForce 7800 GT, ASUS A8n-SLI Premium Mobo, Creative XFi- Fatality and 4GB Ram.