I just picked up a Reventon 1.1 ex and LCD programming card. For some reason I cannot get the card to communicate with the esc. It powers up and I get a screen showing the firmware revision, but none of the buttons work. I downloaded the PC interface and when I try to use it, the screen keeps telling me to connect the esc even though it already is. The esc synced with the rx just fine and everything works, I just can't change any settings. Any ideas?