Nope, disk repair didn't change anything. In the meantime I've added a 2nd striped RAID drive to the machine and THAT works fine. So now I'm completely baffled. It actually works fine if I pick sub ...
Nope, haven't got Time Machine running on this box yet (still under Tiger). The only thing that I can think of that's different from other drives where it works properly is the striping/RAID setup.
DiskInventoryX doesn't seem to like my external drive - it's actually two 500GB LaCie drives (Firewire800) that are RAID striped together to look like a single 500GB drive. When I launch DiskInventor ...