Thanks for your reply. I don't have anything on my walls. Also, the photography light I used had a daytime rated LED bulb in it and it was right there bright as hell, :) so I don't know how it can be lighting. I haven't changed any of the bulbs since I've had this Reverb. I just finished a flight and during it, after constant flickering my Reverb was stuck in 3DoF. When in 3DoF, I received no flickering, but I was missing the 3 rotational movements. I don't know what's going on here.