I've got a toshiba 2595 cdt with win98. a few weeks ago i reinstalled win98 (the hdd went bad :-( ) and since then when i leave it sit and come back to it for a few hours, it has restarted and sits with the "no boot disk found" or whatever exactly it says error. booting from a floppy and running fdisk doens't show any drives. powering it down for about 5 mins fixes it. there seems to be no rhyme or reason to these problems. never happens while i'm around, either. any thoughts?