I attached my WD Passport hard drive to my A500 and the A500 apparently did not see it. The Passport's pilot light came on and it the disk spun up, but no file system mounted to the obvious places - /usbdrive, /mnt/usb_storage, /mnt/usbdrive. Sam result when I plug in a generic external disk. Both disks areAm I missing something obvious? P.S. Just noticed that the no-name drive is an NTFS file system. That (according to Ace) explains that. But the Passport is a FAT32 file system. FWIW, a USB thumb drive was immediately recognized. Any thoughts?