I am running windows XP, just got my computer back from my friend who had it all jacked up. I had to do a format re-install just to get it to run at all. My problem is that now my computer does not see my burner or any harddrive I put in it. I have tried the jumpers and the auto detect and some other things. Bios doesn't see these either. It's all the same hardware so I don't understand what happened. He barely knew how to turn it on so I know he was messing with anything else. Can someone help me?