replacing bad video card

It seems that I have a dis-functional video card on a 2000 model HP desktop. This is my personal computer. I think that I can replace it myself with a cheep video card. I don’t do gaming on this computer. The problem is I can’t see anything anymore with the computer. I know it’s not the monitor because it works with my laptop.
How can I uninstall drivers from the old video card if I can’t see anything on the screen? How should I proceed? What’s the best inexpensive video card for a old HP Pavillion desktop computer?

tia,
Glo