Hi all! Just got a new place where my electricity is included in the rent so I figured I'd set up a miner. I've been thinking about it for a while so this is as good an opportunity as ever right?

I just want to get a miner going while I'm familiarizing myself with all the technical aspects of bitcoin. I've installed GUIminer and set up an account in one of the mining pools. However, GUIminer isn't detecting my video card. I've opened up my tower and made sure that I do in fact have a video card and that the monitor isn't just running off the motherboard.

Do I need two video-cards, one for my monitor and another unused video-card for mining, or can I use the same card for both at the same time?