Have it installed?

Step 1: Take screws out of back of case and take case off.
Step 2: Plug card into AGP or PCI slot. It won't fit in the wrong slot, so don't worry about that.
Step 3: Put case back on.
Step 4: Turn on your computer.*
Step 5: Install drivers from the CD that came with the video card.

*If you're running on-board video currently, and you put in an AGP video card, you have to go into bios and tell it you're going to be using an AGP card. It's not too difficult--just another step you can't forget about.

What is it they say about silence being golden?