Computer crashes during loading screen

I've had several crashes today whenever im loading on a mission and challenges. It boots me out and the cpu starts rebooting and it very fustrates me This only occurs only when i load on missions not when i first logged in with the loading screen and i've had no idea how to fix this this crap. I keep sending the error reports that pops up everytime i log in to my cpu but the problem still persists

Could you show us some of those error reports? It would help. Does this happen in other games, or at other times, or is it just Guild Wars that does this? My initial thought is a video card problem, because the in-game graphics are much more intensive than the loading screen. It MIGHT be a heat problem, but Im not sure. Are there any odd colors on the screen, or does anything just "not look right"?

Error type : Windows stop error (A message appears on a blue screen with error code information)
Solution available? : No (see Next steps)
What does this error mean? : Windows has encountered an error from which it cannot recover and needs to restart
Cause : Unknown device driver
Computer symptoms : A message appears on a blue screen with error code information (for example: e.g. 0x0000001E, KMODE_EXCEPTION_NOT_HANDLED)
Additional steps for you to take : Important: Please continue to send error reports so analysts at Microsoft can study and try to correct the problem as quickly as possible


just guild wars and there was no blue screen when i crashed