I have a Trutrak Digiflght II autopilot with a Garmin 430 and AFS EFIS. When rolling out of a turn, wings level and egaging the track/altitude hold the autopilot will begin a shallow turn for 6-8 degrees in the direction of the preceding turn and then turn back to the selected track. If I disengage and re-engage the AP after this deviation it holds the selected track without deviation. I recently had the software version updated to V2.53. Trutrak has been good to work with and even sent a new AP to me which did the same thing. They are stumped and I'm out of ideas. Is anyone with this software version and setup having any problems? Here is a link to a video of the problem.