Every time I connect a USB external drive to my Dell notebook with XP professional the OS assigns drive letter 'F'. This is because C is OS, D is data partition and E is DVD drive. But this is a problem as I have F as a mapped network drive. So I have to change drive letters before I can access the external drive.I could change the mapped network drive but I would prefer to change the letter that is automatically assigned to the external disk. Is there any way to do this?