Just had a look at your transmitter that is supplied with the model on the Hobbico website, and I'm surprised to see that it has reversing switches on the front panel. Is it possible that you've knocked the aileron reverser switch whilst the tranny was not in use? Make sure that the aileron reverser switch doesn't have a fault by checking that it switches correctly and reliably and is not suffering from an intermittent contact. ( if you can get to the wiring on the back of the switch easily, solder the wires in the appropriate positions to have the ailerons working correctly, thereby removing the need for the suspect reverse switch. As this has happened before, I really think you need to pin down the cause and rectify the fault before trusting the radio again. Have you tried contacting the supplier/manufacturer? I know the trading laws are very different in the US to here in the UK where we appear to have better legal rights when it comes to faulty goods, but it might be worthwhile before anything else at the moment.

Kev.