I installed the latest firmware upgrade and all seemed to go well. However, this evening I was going to do a test flight and when I took off and up to about 10 feet AGL, I toggled the gear switch, but it did not retract the gear. One of the gear moved about a half inch and no movement on the opposite gear. I moved the switch to down position and the one gear moved back the half inch. I landed safe and sound and looked at everything. I saw no visible problems and made a second lift off and had the same results at even higher elevation. I landed again and shut it all down. I've not seen anyone else with this problem so far. Any ideas???