yo guys, yesterday i tryed goin on my computer came on started the baby up, and then it went to the black screen n was lke run windows noiramlly, safe mode,safe mode w. other things n i ran normally and every other option, then a b lue screen pops up n says hard ware me be mest or software may be mest, and i put the windows xp cd in to try n restarted the thing, and that doesnt work, what should i do....