I just got a new usb flash drive and my gf used it first on her machine using Tiger. After she put a file on, I put it in my macbook using SL and it won't show up. Disk Utility recognizes it and I've tried repairing but when I click mount it says it can't and to try first aid, but repairing permissions is grayed out....what's up with this??? How could Tiger recognize Fat-32 but SL not??