on my wii console i can only play WiiSports. the virtual console works fine everything else works fine(anything downloaded), but when i play a different CD (super mario bros. wii, super smash bros., wii play, mariokartwii, spyro, and sonic the seven rings)they show the title screen from the wii menu and when i press start the screen goes dark and after 5 seconds it says,"an error has occured, press the eject button, remove the game disc, and turn the power off. Please read the wii operations maual for more information. " what could be wrong?