I've formatted this drive under windows 7 with several different unit allocation sizes, but my 360 slim will not recognize it all as an internal drive or in a usb enclosure. I have a 320gb drive that works fine so I dont think my problem is in the 360. The drive doesnt show up in stock dash,FSD,or XexMenu ??? Is there something in the bios of this drive blocking a 360 from seeing it?