Hi, I am going nuts. I just bought a Midi interface (the UNO by M-Audio) and have a powerbook G4 with garageband, as well as a Yamaha Portable Grand DGX-200 Keyboard. For some reason, I installed the driver and it shows up on the powerbook and in Garageband, but when I play there is this weird low rubmbling noise. Sometimes it sounds like a piano, and sometimes it sounds like thunder. Has this happened to anyone else and what should I do? is it just a faulty Uno? Also, how do you make it so you can record the sound off the keyboard, and not the garageband software instruments? Sorry, I'm clearly a newbie at all this stuff, and I am having some issues. Thanks for ANY help you could offer.