Just received a 48 in 1 multi-cart. I know most aren't big on these, but I am a gamer, not a collector, and for $200 for 48 games, thats a decent deal. I am, however, having a probelm with the cart. I am running off of a uni-bios 2.3 and everything works great except their is no volume on any of the games. The normal menu screen comes up with a listing of all the games. When I pick a game it takes you directly to a uni-bios error page and states to report the error to the uni-bios home page. I'm assuming these carts are not fully compatible with the uni-bios and this is why their is a problem. I will be installing the stock bios in the next week when I receive it and hopefully this takes care of the problem. Has anyone else had this problem and any experience with these mult carts running off of a uni-bios. Other than this problem, the games work great and are identical to the original from what I have seen so far.