My Y cable finally arrived for my Western Digital Essentials 500GB HDD today, and I was eager to test it. My HDD is on the list of compatible drives. I plugged it in, and the first time, USB Loader GX froze at "Initialize USB Device". I powered the Wii U down, and switched the USB plugs around, and this time, it wouldn't detect the drive at all. I switched them back to the way they were initially, and this time, USB Loader GX appears to accept the drive, and get past the Initializing USB Device error, but none of the content on the HDD is displayed. The hard drive is receiving enough power, and the Wii U detects it and prompts me to format it upon powering on. Any ideas?