I've got a couple of games that the STILL don't work, even after regular cleaning w/q-tip etc. (pretty unusual, in my experience) So.... I thought maybe if I undid the cart and looked inside to clean it more thoroughly?   To any who know: a)might this work, or am I wasing my time on a dead cart and b) I need to get off the label to get to the screw to open the casing - how is best to do this?   Thanks in advance for any help!