Ever since the latest Parallels update (Parallels 9) for Mac. My Quickbooks business software running on windows XP no longer shows my LaCie External Drive as "drive W" as before update. I back up to that drive after every session. I know I can backup to the desktop then drag the backed up file onto my external drive icon on the Mac desktop, but it was just so much easier just choosing it from the list. Thanks for any suggestions.