Hi, this is my first post and also my first time building a pc. I am building a pc from scratch and am having trouble installing windows xp. The system boots up, reads the cd, windows then starts with a screen that says "checking system configurations". then the screen goes black. windows loads up fine without hard drive plugged in. my hard drive shows up on bios. i have tried switching the cables. and now i'm frustrated. i have a feeling it might be the hard drive, but i've already replaced it once, so i want to be absolutely sure i'm not leaving some other variable out.