Hi mwt808
is it possible you installed the Video card without turning the power off at the back of the powersupply or before waiting for the 5v standby voltage to discharge. In either of these 2 cases it is possible you rest the cmos and would explain the errors you are getting. I( would suggest the following.
1. check the cmos settings if not sure, Load cmos defaults, and check the computers date and time
2. In safe mode set the video drivers in control panel, hardware , video to standard VGA.
3 Then see if the computer starts in standard mode if so load the CD that came with the card
Lisa