are you by any chance using an external sata enclosure ??
many times these enclosures have drive size limits >>>>> I see alot of them that state they are ok with drives up to 750gig, which leads me to believe they are not so "good" with drives above 750 gig ????
will wait to hear more from you
also it would help if you could give us your complete system specs ?
which service pack does your windows xp OS currently using ?????
you "may" want to try adding SP-3 (be warned its still beta, but I have been using it rather frequently and have been happy so far)
always install service packs from safe mode
http://www.mydigitallife.info/2007/1...setup-package/
win xp does work with 1TB drives