Okay, I bought the SanDisk Cruzer Micro 2GB so that I could transfer stuff between my iMac and any other computers I might encounter. There was a bunch of extra stuff already on the drive which I was worried about deleting, because with my luck, they'd probably be required later. So, I happily loaded up a bunch of photos and movie files and went off to my Sci-Fi club to share with their PCs. Only thing that showed up on their desktop was the U3 thing. Do I need to do some'n special when I want to move from Mac to PC?