i have a MID 7" tablet (android) model 729b. its a decent tablet but i cant seem to get it to connect via usb to my computer. i plug it in and it doesnt even give me the hint that something new is plugged in. i didnt get any cd's with it and the manuel says it can be connected to the computer. is there a driver im missing or is there a different way i can add my own music and photos to it that doesnt require a sd card? any advice is appreciated.