errors 500 , 501

Did you try typing cmd in search from an Adm account then in cmd type sfc /scannow. Lets see what happens.

Have you tried the newest drivers for your nvida9800gx2 ? And if not are you running the current one in compatibility mode? I had same problem and fixed with drivers but I did not have your graphics card. Good luck to you with this problem.

Boot from your win7 DVD. When given the choice select repair. That may work.

saad1957 said:

i have newest drivers , tried to repair nothing helped but for compatility mode the driver is for win 7 why should i run it in compatility mode and for wich os , xp , or vista .
and for this problem i had it with all systems i had before and i have upgraded ram , cpu , os , mobo
it happens when pc resume from sleep the only solution may helped was turning off " thumbnails "

Did you check the driver in the graphics card. I know you said you have all the drivers, but there seems to be a connection between the thumbnails and your problem.

Did you see this driver? Good luck to you with this problem.

saad1957 said:

" Did you check the driver in the graphics card " how?

The prior poster may have uncovered something. But to check your drivers, type device manager in search. Then go to the driver in question and click on it. Does it show working properly, or do you see a yellow warning to update?