I've newly installed Parallels 3.0 and Windows XP home on MacBook Pro, Leopard 10.5.2. After running P only a few times the VM is suspended and when I try to start it I am getting the message 'winxp.hdd is used by other application'. I have no other applications running. I have tried the 'unlock' fix in Terminal but confess that as a newbie I am out of my depth.