Ok so i got a new vid card the ati 1950pro. I went to install. uninstalled old driver first. installed card. then tried to install new software, but the problem is when i install the card the computer starts to boot, then gets to about the windows page with the scrolling bar goes from analog to digital 3 times and goes on stand by. i can hear the computer starting up, but no picture. WHATS GOING ON HELP!!!