I am running a dual boot system with Windows XP and RH9. I normally run in windows, and my computer was humming along in windows just fine. I heard a beep from the computer when I was in the other room, and walked in to see it had rebooted itself. GRUB then tried to boot Windows, but all I get is GRUB Error 13: Invalid or unsupported executable format. So...I can't boot into windows. Luckily I have linux on the machine, and I fired it up and I can see all the partitions on the machine except that NTFS on that windows sits on. When I try to mount it it gives me an error: FAT: Bogus logical sector size 1585 VFS: Can't find a valid FAT filesystem on dev 03:01. I can mount other NTFS partitions. Here are the details: 500 MHz Athlon, 256 Mb RAM, 200 GB WD HD, WinXP, RH9 using GRUB. Here is my partition table: Disk /dev/hda: 200.0 GB, 200049647616 bytes 255 heads, 63 sectors/track, 24321 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/hda1 * 1 1275 10241406 7 HPFS/NTFS /dev/hda2 1276 24320 185108962+ f Win95 Ext'd (LBA) /dev/hda5 7748 24320 133122591 7 HPFS/NTFS /dev/hda6 1276 1288 104359+ 83 Linux /dev/hda7 1289 7682 51359773+ 83 Linux /dev/hda8 7683 7747 522081 82 Linux swap Partition table entries are not in disk order