I used this line in /etc/fstab to get things setup the way I want it :

/dev/sda3 /home/joris/share vfat rw,user,users,auto,uid=joris,gid=joris 0 0

Obviously you will have to replace joris by your own username, and maybe you need to use gid=users, depending on how your distro handles things.

But the error is confusing, it makes it sound as though the torrent is corrupt, but it just hasn't got the rights to create files in the final directory. I'm gonna fix this.

Yeah.This errors is the same as mine one time the torrent can load after some minutes without restart of the program the torrent cannot load ( shows error ).Very strange..I hope that you will fix it.

When this is fixed, please tell me.