OK- so I think I give- I can run Dios Mios Lite with an SD card just fine. I cant with my hard drive. I even re-formatted my hard drive last night with Acronis just to be sure that I was fat 32 with 32kb cluster size. 1 partition, active and primary- put just my GC games on it in the path of games/gamename/game.iso, reinstalled DM 2.6, latest updates for usb loader gx, wiiflow, and usb loader, still black screen, no DM splash screen. I guess my hard drive just isnt compatible to play GC games.... agree?