Hello,I just spent the full day trying to figure out which programs seemed to be incompatible on my rig, and it seems that they are RC 4.3 and PMDG 747-400X.Whenever I use each of those addons separately (PMDG only, without RC 4.3, or RC4.3 with any other aircraft) everything is fine.However, as soon as I start using RC 4.3 and PMDG 747-400X together, the IRS dealign themselves, ATC keeps repeating "QNH 1013" before and after takeoff, and the gear of the PMDG is unresponsive (I can drag the gear level as much as I want, toggle gears, etc, the gear just won't go up).Any suggestions? I'd just love to fly that big bird with proper ATC...Thanks,Paul Greve

follow the pinned instructions at the top of the forum, and create a .log for me, and ship it to mejd

Make sure you are using the latest FSUIPC 4 for FSX, link at the top of the forum. That is the link to Sim Connect which is used by the PMDG 747-400X.A few of the PMDG developers and beta testers use RC4. Try posting on the PMDG forum here on AVSIM regarding this. See if anyone there is experiencing these problems.

Hello all,the problem was solved by using the "updated" version of the PMDG 744X. Let's say that the initial version of the PMDG 744X had a few "glitches".Best regards,Paul