This is a tough one for you because I can supply very limited information. When I share my external USB hard drive with HFS all appears to be ok for a while then, maybe because some other software like virus scanner of media player accesses the USB drive, HFS stops responding and uses exactly 50% processor time. Only way to recover things is task manager end process. The problem don't end there though, windows xp is now unstable and other tasks will eat up 50% of resources one afer another, sort of domino effect, until the computer has to be re-booted. This behaviour happens every time I share the USB drive on the HFS server but never happens when HFS shares the same files from the internal IDE drives. Maybe it's just my computer that's a bit quirky maybe it's HFS I just can't tell you more. Maybe worth just knowing about the problem and see if it turns up for anyone else. Oh by the way the USB drive seems to work perfectly with all other software that accesses it I use the drive constantly without error.