[Sammus]

This could be a really dumb question, but are you using the same radio as you were before it died? I ask because I somehow manage to forget to reverse the throttle on my futaba radio every time I make a new profile on it, and with castle controllers it gives similar symptoms to what your getting, especially when I try and calibrate it. Flashing LEDs, apparent LED response to throttle, but no tones or anything...