Same problem with blue screen

Hello,
My problem started when I was loading some drivers. I suspect that I tried to upgrade the bios and did not allow the process to complete. When I reboot, window xp load and then the screen goes blue. I have tried to start in save mode but same problem. I have repaired window xp and that did not help. I have reset cmos throgh the jumper but no success yet. I have reed all the sugesion above but not is unique to my situation. Am I the only one with this problem, any Guru there? Please help!!