I run an Athlon64 3000+, 1GB PC3200 RAM, Nvidia Gforce card with 128MB. WIn XP Pro. The photoshop problem may have something to do with memory, PS has a habit of grabbing memory which might already be in use. Upping the RAM May help. I personally dont like PS, I prefer PS , its smaller, has all the same features, a better interface and doesnt take 2 minutes to load up. I usually leave it runninng all the time while Im working in Ray Dream or Carrara in case I need a quick texture image for a bumpmap or something.Generally The more Ram the better the Blam.. :)