I replaced the card like it said in the manual and turned on the PC.
The monitor was not picking up.
I tried to restart the PC, having remembered this problem from when I first installed the FX 5200. It worked, and so I continued to install the drivers. It told me they were old, but I ignored it, as the lastest Nvidia drivers wont play HL2.
So after the computer restarts, it comes up with the installer again, I was sure that this was like a continuation of the previous install, as opposed to a fresh install, which is what it was. So the drivers installed twice. I thought nothing of it, again, happened before, no problems encountered.
Yet now, when I turn on my PC, and it gets to the WELCOME screen before the monitor turns itself off and the computer restarts. It takes about 3 minutes of restarts for it to work.
Now when it was working
It was working well. I played HL2 with no problems whatsoever on high. All the DX9 trimmings running perfect.
But its just that I really cant think whats wrong with it that makes it work sometimes, but not others. Theres no set amount of restarts it goes through. It's a random, and therefore most likely human error.
I've tried different drivers, but nothing seems to solve it.
Pentium 4 2.4ghz
GeForce 6600 graphics card
Windows XP SP2