I finally reinstalled the xp on the D drive.but didnt format so I dont loose data.ofcos the vista partition would nolonger be up,so i used ''easybcd'' to reenable vista and enable dualbooting. please what can I do to enable ''hibernating'' cos even the ''standby'' button is faded.meaning I can't put the xp partition on ''standby'' nor ''hibernate''. Thanx.