This is on a Dell Latitude 830 XP SP3 with SATA internal drive and USB external drive with the Acronis backup files. My original hard disk failed and I got a new one, these were both 7200 RPM SATA drives, the original 120GB, the new 160GB. I've done nightly incremental acronis backups and have a recovery bootable CD. I reboot with the CD, select the Acronis TI full option, select the lastest backup, select restore the entire saved partition, expand the destination partition to include all free space, and start the restore. What happens is it starts, runs for several seconds with both the internal and USB disk active, then hangs. I've downloaded the latest version of the Acronis software, tried the quiet acpi=off noapic F11 option, tried earlier backup files from my USB all with the same result. I also attempted just restoring a single directory both the my internal drive and to a second USB drive. What happened is the copy ran for several seconds and copied most of the directory, then hung. There are no other USB devices on the machine other than the disk. I ran the DOS disk diagnostics which all passed, reinstalled windows and ran it with no problems, manually copied a bunch of files from the USB to the internal disk, all worked fine so I think the disks and controllers are OK.