Bought New Video Card For Dual Monitors - Now My Computer's So Screwed

[JohnnyHumongous]

To support two LCDs for 8-tabling I bought a new video card yesterday- the ATI Radeon X 700 Pro (AGP). It took about 20 tries to even get my computer started properly. Everything's running much more slowly; for instance, when I scroll down in Internet Explorer it doesn't scroll smoothly, but instead in kind-of "chunks". I can't get the second monitor to display anything. It briefly displayed the same thing as the first monitor when they were both set at 640x480 (when I got the computer to reboot). As soon as I set the display to 1600x1200 only one monitor will display.

Any thoughts??