11/6/09 UPDATE
Found the problem with the Spektrum SR3000 reciever. Antenna wire isn't attached to the circuit board!!!! Time to heat the solder iron!!!
===
Found out why the wheel came off during the Mod Short Course 10 minute main. A racer by the name Dylan, passed me so fast that the wind as he passed me, became a left handed vortex that un-screwed the nut holding the wheel on!!! :-) ROFLOL!!!!!!!!!!!
.
