My friend gave me a copy, and for some unkown reason, after doing the chores and getting everything I need to get to kill Gene, it doesn't work, he stands there and doesn't light his cigarette, and says the oven isn't tampered with. But he doesn't move from there, and every time, I "fix" the oven so he can blow up, but he never does and I'm just stuck standing there, watching him. Help?!