I've built the system i'm currently using about 2 years ago and has run everything i do flawlessly, though recently some things have happened.
Whilst playing Saints Row 2 (PC version), the game randomly froze. Freezes are common in the SR2 client due to its nature as a horrible port with many holes.
Anyway, i performed a hard reset and since then many problems have arisen. Firstly, my PC no longer detects my video card (Listed below), and my memory has been acting up, but i've managed to keep it stable. In order to log in to my PC i've had to use the on-board graphics unit with my mobo.
In this mode ( On Board ), when i go into device manager, the card is listed as "3D video controller" under "other devices" with a small yellow "!" next to it.
The odd thing is, the card is functional and running, with the fan operational and the sounds heard if directly connected by VGA (Login sounds, etc)
Is there any hope, i don't feel i should have to pay another £60 or so due to a random crash in a horribly optimised game, if that indeed is the cause...