I am a professional photographer with five computers accessing files from a network server; none of the photos are stored on local C drives. Four of the five computers (all different ages running windows xp or windows 7), are fine when working in Photoshop (CS3, CS5, cs6) , but the newest fastest computer (Intel Core i7) running windows 7 with Photoshop cs6 (updated today) is slow. For example: when opening a photo and cropping for the web (5x7 at 72 dpi) and then closing the photo (saving the change in the same fold it was opened from), takes less than a second on the four older computers. On the new computer it takes 7 to 8 seconds. Any ideas why and any advice would be greatly appreciated.