Random Crashing

Whenever I start up Garry’s Mod, during the loading the screen it suddenly exits itself out. I tried restarting my computer, but that didn’t work (lol?). My drivers are up-to-date, and this all happened when I suddenly crashed while driving a car.

CHECK THE BOARD BEFORE POSTING, YOU MORON!!
http://www.facepunch.com/showthread.php?t=772165

Fully agreed with raging wolf.
there is already a solution posted, just take 10seconds time to check if there are no other threads related to this problem.