In the area where you insert a game there are metal sharp things like forks and on the game there are little metal soft things. When they go in the should all be touching if you are missing one or one of them is out off place or even just slightly dusty it wont work. Look and make sure they're all there and are clean and in the correct place. Try blowing into the hole and wiping the game with a dry cloth. Hope this helps !
Olivia
January 2008