I just purchased the rockband value bundle with the beatles software, and I can't seem to get any type of power response from the wireless guitar which cam with it. It is an xbox 360 system, and I get no indication of power when I push the xbox button on the guitar. Is this a known product failure, or am I overlooking something very simple. I have fresh batteries installed correctly, but is the only power switch the xbox button just above the sync button on the guitar body? Any help would be appreciated. Nothing worse than buying a kid a b-day present and can't get it to work.