I have Windows 7 Home Premium and was thinking of upgrading to Professional so I can use the builtin backup feature to backup to a network drive. Problem is my network drive is on a DD-WRT router, so the drive is formatted ext3 and shared via Samba. I can browse to the drive in explorer, but I thought I read somewhere that windows 7 backup requires drives to be NTFS. Will I be able to backup to this network drive? I don't want to spend the $100 to upgrade if I do and still cant use the network backup.