I was having no problems with the PMDG 600-900 series until recently. Three things are now happenig and I cant pinpoint the cause to either FS9.1 patch or FSUPIC which I update regularly. Now I am using 3.44. First problem is the blank Autopilot panel. That has been reported by other Simmers too. I found that if I go to the overhead panel and turn panel lights on the problem disappears. The second problem which is also reported on this forum is the FMC error message and sounding Insufficient fuel although I plan more than is needed including the reserve. The third and most annyoing problem is that in the middle of the flight I get the warning sound Bank Angle and the plane start making very sharp turns and begins to spin out of control no matter what I do to change the bank angle which I normally set at 10 degrees.Autopilot is still engaged during this phenomenon.Any ideas what is the source of these problems and are they related?I appreciatedBill

Bill,My best advice is a clean install. Go get the removal tool from our website and remove the PMDG 737. Then reinstall the PMDG 737 600/700 Ver 1.3 and then the 800/900 Ver 1.1 and I think things will return to normal. Drop me a note at Support (at) precisionmanuals.com if you need fresh installer files. Make sure you include your Order ID'sRegardsPaul Gollnick :-cool Technical Operations/Customer Operational SupportPrecision Manuals Development Groupwww.precisionmanuals.comhttp://www.precisionmanuals.com/images/forum/devteam.jpg