On Friday 23 June 2006 19:10, Peter wrote:
Question: have you ever heard of anything like this happening as the result of an infection?
No.
Is it a reasonable investigative first step to boot from a live Linux CD and find out if it shows up as unallocated space in that too?
I can't see how Windows would report it incorrectly, but it's worth a shot. Try the gparted live CD (or the Ubuntu LiveCD, which has gparted on it). That will show what's on the drive and will allow you to move/resize partitions.