What has happened is that I tried to install a Geforce 6200, followed the instructions etc, but when I rebooted the PC I got the black screen. I know Windows XP is loaded because I can hear the start up jingle. I tried to put my old graphics card back in but the black screen is still there.
I did the same thing on another PC and the same thing has happened. But on this one I am somehow able to get the old graphics card to work through removing the CMOS battery, changing the HD jumpers etc. This doesn't work on the other PC.
Can someone help me? I've spent hours just to get this older PC to work again and I'd like to use the other one if possible.
Thank you very much for any help!