Hello, I recently bought a new video card to play my games like HL2 but after a while they have ceased to function correctly, as in when you run the game from Steam, it loads the game until it gets to the Loading screen with the blurred background before rebooting my computer. The funny thing is, is that the graphics card ran the game until a few weeks ago, which is almost incomprehensible!!! My computers specs, are as follows; Pentium 4 3.06GHZ Processor 512MB DDR RAM nVidia Geforce 6200 512MB DDR. 2 Hard drives an 80GB and a 120GB with a total of 200GB DVD Reader, DVD-RW RealTek AC'97 Sound Adapter a SiS motherboard (im not quite sure on what make) After this has happened I followed instructions on the nVidia site and I have update my Motherboard drivers, etc. However since then, I have entirely reformatted my computer and still no luck. Any Help would be much appreciated as I have no idea on how to resolve this problem.