I have a Cruzer Micro by SanDisk and It 1/2 works. If you don't know what I mean it's like this. My USB drive works on Dells only and When I go to school they only have Macs. I went to SanDisk.com and they said the storage would work, but not the U3 which is fine, but it won't even show it most of the time. If it does come up if gives me 3 files which I can't do anything with. Do I have to reformat it? Any suggestions? If I have to reformat, can anyone give me a website?