I had graphic glitches on a game I bought from the vc channel a long time ago , It was a fighting game forget which one , anyway the problem I was having, when I would start the game , up would be stretched and only on the top half of the tv , so I called ninty , and the tech support guy had me doing some combinations of button presses with the remote and nun chuck and it fixed ....I forget what the button presses where or if that will even fix your problem , but try calling them