Foulestrope, you can alter the sequence in XP.

Whe I buy another hard drive we canplay the game and see if it can be done in 98 or ME, but my recollection is that the KB defintely siad it couldn't - except for CD and DVD as JOhn says.

What we need to test is whether John's system works for hard drives and hard drive partitions - the reason being that if it does, you can allocate the removable drive to Z, put backups on it, then remove it and leave it on the shelf, secure.