I recently added a USB loader to my Wii, but each one I try seems to be having the same problem with games. They'll load the strap loader screens, but as soon as it hits that games respective loading screen, it'll loop forever (In Brawl's case, it was an infinite rotating Smash logo with "NOW LOADING....," with WiiSports's case, it just caught on a white screen). I know the hard drive I'm using (A 250 gb Seagate FreeAgent) works with both the USB loader I'm using and the game I'm attempting to play, because I bought it off a friend who was using it for this very purpose. Any idea what's wrong?
EDIT: I've tried this with USB Loader GX (the loader my friend used), SDUSB Loader 1.5, and WiiFlow, all of which hit the same problem.