I'm trying to access my WD Passport using firewire 800 on both Windows & Mac. The current situation is: I have partitioned the drive through Mac Disc Utility with three partitions. 1. Time Machine 2. Mac OS Extended (Journaled) 3. MS DOS (FAT32) I can access all partitions when running the MAC OS. However when using boot camp to lunch Windows 7 Ultimate (64bit) I cannot see the drive. I've tried going into windows disc manager and can see the disc as an unallocated drive with no partitions. What I want to achieve is to have the one external drive like this; 1: Time Machine (for MAC backups) 2: A partition for storing my MAC files on 3: A partition for storing windows files on (accessed while using bootcamp). All without losing the existing backups on the drive. Sorry I'm a newby to MAC (but love it ) any help appreciated.