hello, a friend of mine has asked me to post this information on here, in hope that it could help him fix his computer. he has recently bought a shuttle, and yesturday put it all together, with 2 hard drives in, a 160 gig, and a 40 gig...., well he didnt reinstall windows or anythink first time. but when booting up, the windows screen would come up, but restart itself during the time when that first screen is on, it was doin this in one big cycle. so he installed 98 on the 40 gig drive. installed 98 and it worked fine. but when he tryed to install xp he got a blue screen. then he departioned both hd's, and tryed xp on the other drive. and got a blue screen. tho whilest doing this the whole drive was formatted. then tryed xp pro, and still didnt work. then he deleted the partions, and repartioned it. left it for the night and in the moring found. that the 40 gig hd, was showing up in fdisk as 8 gig. and the 160 as 45. tho according to him, the bios showed it up as 40 and 160 respectivly. he then put the 160 in his old system and it said it was 65 gig, and not 160 gig. he then mentioned that fdisk, after trying to partion the drive, didnt show up with a results screen, or a comformation, like he said it does, but just asked him to restart. has anyone got any ideas why it might be like this???, thank you for readin this long post.