picard

SAIM ALPER-San, The recalibration of FSUIPC's throttle axis has solved the problem. Thank you so much for your advice! ^_^

Oh,Yes. WIN7 64bits, UAC is off, FSX and PMDG is installed in S drive・・・my rig is set up based upon the Nick's guide line.

I have just updated from SP1b to SP1c and got the same problem. Both engines start normally and fully respond to throttling. A few minutes later, the right engine suddenly goes down and come back and goes down and come back・・・ ???? Reloading and clearing panel state did not solve the problem. :(

Wow! sounds like "V1" call The　closest mother's day in the world is the forth sunday of this march・・・ Thanks