Hello,I am new to this. This is my first build. I have a asus m4a79xtd motherboard and a previously used western digital 150g sata hdd. It starts bios, then says no hard drive detected, but then starts to boot windows xp. It then blus sceens and the cycle starts over. I booted ubuntu from disk, and it works fine, but bios still does not detect hdd and I cant access bios. Any suggestions?