I just reinstalled a P4P800 SE motherboard in my PC. I used my old WD Caviar 80G sata HD, connected it. I have tried installing the drivers that came on the mobo cd, and one from asus website for the sata chipset (Intel 865PE chipset) yet I am still getting sent to the screen to where I have to choose to restart under last known good configuration, safe mode or start windows normally. Is there a way to install the drivers without using the windows xp disk? Do I have to reformat the HD(I want to avoid this)? I am still a bit new to the Sata HD installation bit, so the more info the better.