EXT2-fs error (device ide0(3,68)): ext2_che
ck_descriptors: Block bitmap for group 192 not in group (block 4294967295)!
Remounting filesystem read-only
EXT2-fs: group descriptors corrupted !

This is bad, if I remember the major,minor numbers correctly, it looks like /dev/hdb4 (music partition on second drive) is unhappy...
fsck instructions are in the FAQ. Run it on at least the /dev/hdb4 partition.

/Michael