This happened out of the blue really, everything working fine one day, screwed up the next.
The computer was fairly dusty and was getting a little hot, but nothing horrible.
I reseated my graphics card ( Nvidia GeForce) and it seemed to fix the problem for a bit. The graphics didnt flicker at all, and the game lasted much longer before freezing.
Everything that doenst require 3d Graphics works fine.
What could be the problem?