could be a hdd issue i have a lacie 1tb hard drive and the screen goes black when i try to load a game as well. However when i use a different lacie harddrive it works both were partitioned the same formatted using wfbs manager. The only difference is the hard drive model # (both 1tb) . confirmed this on 2 different wii consoles with same files loaded im stumped the non workin hdd is a friends i was setting up for him.