Greetings -I have been running FS2Crew on my machine for quite some time now on the PMDG 737-700. I had owned the 800/900 upgrade for some time but never got around to installing it.So, recently I installed the 800/900 upgrade, installed the latest SR for the 737NG off of PMDG's site, and installed SR1, 2 and 3 for FS2Crew.Now, no matter what plane I end up using, the CPAL buttons do not work. I do load with the default Cessna like I always do, but even following correct procedure, I cannot get the product to function.Any ideas to help would be appreciated.Jerry

Hi Jerry,I'm guessing you tried to install the "Non" 800/900 version of FS2Crew PMDG 737 into the PMDG 800/900 Upgrade version. That's a no can do.Send me an email:[email protected],Bryan