Anyone else tried to format a flash drive/external HDD in the exFAT style to get compatibility between OS X and Windows 7? I cleared everything off a little 350GB Western Digital Studio Passport thing, used Disk Utility to reformat it exFat, loaded stuff back on it, but Windows 7 just can't see it. I've got an external HDD in my safely remove stuff menu, but in Windows Explorer, there's nothing at all. Any ideas? Should I wipe it again, format in FAT32, load Windows, and use whatever Windows utility there is to do an exFAT reformat?