I need to reinstall my video on my machine.

I have a Dimension 4700 and am running Windows XP on my computer and recently, the graphics card I bought for it from another company burned out. After removing it and reconnecting the VGA connector the original outlet, I am missing the video drives I believe. From looking through my Device Manager, there are question marks by:

-Video Controller

-Video Controller (VGA compatible)

After coming to this site and entering my computer model and looking under the video options, I see many options. Does anyone know what video drive I am suppose to have on this computer?