
Originally Posted by
jwtemp
Alright, here's what you need to try. This will result in a loss of ALL your CS:S settings and downloaded maps/sounds/whatevers, but we have to narrow down to determine if it's your computer or the game.
Uninstall CS:S via the Steam interface. After the uninstall is complete, navigate to C:\Program Files (x86)\Steam\steamapps\common (if you're using Windows XP, the (x86) won't be there, but same path). Inside this folder is a Counter-Strike Source folder. Delete it.
Reinstall the game. Report back here the results and we'll go from there to the next step.