I am having a big issue with my computer. I originally ran windows xp professional until i upgraded to adobe cs5 and needed to switch to windows 7.now that i have windows 7 my programs stop working constantly. if i'm working in photoshop on a large photo the screen will go blank and a bubble will pop-up saying "driver stopped working but has started working again" and a lot of times photoshop, illustrator, and FL Studio will stop working and need to be shut down and started again. i've noticed sometimes when the computer is on overnight i'll wake up and it will be off. when i turn on the computer it will say that it didn't shut down properly. i was in the process of doing batch photo edits and it shut down on me right in the middle so i've got to figure out the problem. any help would be greatly appreciated since i use this computer for freelance graphic design and photography. here are my specs. windows 7 home premium build 6.1.7600 64 bit motherboard: nForce 750i SLI intel core2 cpu 6400 @ 2.13 GHz 6GB of RAM display: NVIDIA GeForce 8400 GS Thanks in advance i've got to figure this out. no viruses that i know of.