I've tried all I can think of. I've tried the dell drivers, ati drivers, even ones I found in Microsoft update.

I go into the properties and set AGP at 4x  and restart as required. The problem is that when I go BACK into the properties, it still tells me AGP is off. I tried finding it in the BIOS, but evidently Dell left that sort of setting out. I even got the newest revision. I know it isn't the card, because I tried it in a different computer and it worked. I did try a different card in this computer and I still couldn't get AGP to run on THAT one.

Hence my conclusion, whichever motherboard shipped with my Dimension 4550 is a huge piece.

Please help me. I'm about 30 seconds away from burning this and building my own.