Questions: (Things to try or think about...) The COMPUTER locks up, not the harddrive, right? When you re-boot, do you do a warm boot, or a FULL power down and thirty second wait to restart? (Try the second.) Can you put the drive into a second machine and run it as a DATA drive to see what happens? I'd also try another drive in "this" system as a BOOT drive to see if the system was unstable powerwise or something. Hope this helps... Rick Glazier CC:[log in to unmask] . ----- Original Message ----- From: "David" <[log in to unmask]> I have a Fujitsu 15gb hard drive which is acting very strangely. At first boot up it performs quite well, but after about 15 or 20 minutes locks up. When rebooting, the drive is not recognised resulting in HARD DISK FAILURE being displayed. After shutting down and waiting about 30 minutes the drive is again recognised at boot up. Overheating is not evident as the drive feels quite cool to the touch and the rest of the computer seems OK. This procedure of booting and shutting down can go on indefinitely without any change to the drive, and I am at a loss to explain it. One would assume the hard drive is finished but it just keeps on going. Being only a little over a year old it is very disappointing to encounter this behaviour. Any thoughts on this? The NOSPIN Group Promotions is now offering Mandrake Linux or Red Hat Linux CD sets along with our NOSPIN Power Linux CD... at a great price!!! http://freepctech.com/goodies/promotions.shtml