I am running RH7.0 on an AMD k6-2 500,64MB,15G Western Digital udma 33 ,Asus P5a mobo,s3 vid card,ensoniq sound card. I ran #hdparm -c3 /dev/hda to change to 32bit I/O and then logged out of root and back to user. When gnome came up it froze and nothing would back it out of X and without knowing how to get it to reboot I had to reset the box(I'm sure thats the problem) :( I get the following error after autorun' ext2-fs error (device ide0(3,7)):ext2_check descriptors: block bitmap for group 1 not in group (block 0)! ext-fs:group descriptors corrupted! invalid session number or type of track kernel panic:VFS: Unable to mount root filsystem on 03:07 Any help greatly appreciated!!! John