I have a new install of a D10A, 2 hours of flying. The EFIS shows a constant left turn when I'm really straight and level. It does seem to follow my turns correctly, but once back to level, it settles showing a constant left turn. On the ground, all is normal, shows level flight. What do I need to do to cure "the leans"? I'm using Firmware 5.3 but it did this using 5.2 also. Marty