Quote:
When I typed the lines 'umount /dev/hda4' & 'umount /dev/hdc4' I got a bash error saying 'unmount no such file or directory'.


Admittedly, it was in the general text and not bold alongside those lines (I'm going to edit it so that it is) the FAQ did say: If you have only one hard disk, you may omit the lines that include /dev/hdc4.

However, you shouldn't have got those errors for hda4.

I think your problem all along may have been TTSClock, Emptris, and Pacman, some or all of which are running from the music partition (Drive0). Those programs are locking that partition and making it so it can't be read-write for the synchronization procedure. Remove them, do the necessary steps to FSCK, rebuild your databases, and you should be OK.
_________________________
Tony Fabris