BSOD when playing games, browsing using Firefox and more

[Kimbolini]

I'm getting the BSOD with various scenarios:

Playing Second Life
Playing Civilization V
Browsing using Firefox
Even when my computer is sitting unused

 

[surge411]

seems like a video problem. I've had allot of these before. Ok, first of all, try to run verifier: http://www.sevenforums.com/tutorials/101379-driver-verifier-enable-disable.html
It will put your drivers under stress and (hopefully) reproduce problems much faster. It's good for testing purposes.
Second, the blue screen is caused by nvlddmkm.sys, an NVIDIA driver, so i would recomment (perhaps BEFORE enabling verifier) uninstalling and reinstalling ALL nvidia drivers:
- download the latest drivers for you card at their site Drivers - Download NVIDIA Drivers
- select the "Clean Install" option
It is best to do this in safemode because if it crashes during the update, it may corrupt the system and cause more havoc.
After those steps, enable Driver Verifier (as stated above) and tell me the results.