So i got myself one of those cases that has the usb keyboard built in. The thing is, it doesn't seem to get any power from the unit it self. Is there a setting I have to enable on the tablet? I tried the keyboard on my pc and it worked, also, i replaced the dongle on this coby with a brand new one and still nothing. The usb port on the unit works because i can hook it into my pc and access my files. Thanks for your time!