Hi all, Thanks for your input. I tried to isolate the problem too. A few oservations: -Problem persists in any of the published startup procedures (Manual/Auto, official and other tutorials - I've tried every thing I found). -Problem persists even after I restart XP or reboot. No other airplane shutoff prior to that. -No relevance to CL position, weather they were moved by hardware or mouse (BTW - in the autostart option, they are being set by the system. -After a couple of hours last night, trying to start the plane at PAYA, I changed location to KSEA and managed to auto start.. -This morning, started again at PAYA, no luck, changed to LCLK and was able to start manually without any issue. Chaned back to PAYA and again, started manually without any issues. Seems like an issue with the combination of plane and airport. It seems like a "work arround". However I wisht the good people at LES would take a look at that... Hope this helps.