Just recently purchased 747-400 V1R11 for FS9. It seems that the only way I can get everyting to work correctly is to use the MSFS ATC. I use Active Sky, AISmooth, FSCopilot, Flight Keeper, and Radar Contact, when flying other aircraft, including PMDG 737's and I have no problems. When flying the PMDG 747-400 and using the above listed programs, either before or shortly afterwards receiving taxi instructions, all 4 engines suddenly start to go up and down in RPM's and eventually #1 and #4 engines shut down... (I follow normal procedure checklist to the letter.)If I use the above listed programs and use the MSFS ATC instead of Radar Contact, everytrhing works great... I cannot seem to find any info regarding this issue anywhere. Am I missing something or does anyone have any ideas? Thanks..jman214

What is your fuel distribution (how much in each tank)? Regards.Q> イアン

Have to go to work right now, will check it later tonight. I think that I had 35% fuel loaded, about 60K pounds in tanks 2 and 3. The problem only happens when I am using Radar Contact version 4. Using MSFS ATC everything works great.jman214

Qavion,just out of curiosity... How would you compare this FSX version of the 744 to the good old PS1.3aEE??? FM-wise, systems-wise, whatever-wise ;-)I'm curious...