BSOD when exiting games - Need HELP

[Hypnotise07]

I only get BSODs when exiting any game with decent graphics after playing for about an hour. If i play these games in windowed mode i dont seem to have that problem..
When playing Battlefield 3 yesterday the game seemed to froze-up every 5mins and would only unfreeze if i alt tabbed and hit CTRL+ALT+DEL and then open the task manager (had the same problem in other FPS).

My configuration, i have the latest drivers installed and i tried all kinds of older drivers for my VGA:
Windows 7 64-bit
Mainboard GA-MA785GT-UD3H
Phenom II X2 555 - no OC
Nvidia GTX 460
4x1GB Corsair 1333 CL9
1x HDD WD Caviar Black 500GB
PSU Antec True Power 550W ~ 4years old

- ran the memtest in DOS for 5 hours with no errors
- ran prime95 for 20min with no errors, temp at 34 degrees max
- ran furmark for 15min, GPU at 61 degrees max
- ran both prime95 and furmark for 10mins, no problems

Here's a picture with the bsods i have been getting

What can cause these BSODs ?

 

[itzdanielp]

IT's really hard to tell... but it could be your chipset driver. It could be a corrupted windows installation...

 

[Hypnotise07]

IT's really hard to tell... but it could be your chipset driver. It could be a corrupted windows installation...

Do you mean the mainboard chipset driver? Also I have reinstalled the windows before, so i really doubt thats the problem.

 

[itzdanielp]

yes, the mainboard chipset driver.