empeg:/# fsck /drive1
Parallelizing fsck version 1.19 (13-Jul-2000)
e2fsck 1.19, 13-Jul-2000 for EXT2 FS 0.5b, 95/08/09
ext2fs_check_if_mount: No such file or directory while determining whether /drive1 is mounted.
fsck.ext2: Is a directory while trying to open /drive1 { I don't know what this one means, fsck.ext2 is a file... }

You should read the above as "fsck.ext2 received error 'is a directory' while trying to open /drive1". I'd guess you second drive was not mounted at this point so all fsck sees on /drive1 is an empty directory.

Borislav