Hi all I just finished upgrading my computer for FSX--what a treat! New Guad core --4 gig of ddr3--ATI 3870x2 Etc---the sim is working like a champ---BUT My new PMDG 747-400 has a problem, I flys great and looks great but when I start to operate anything on the instrument panel, all of the Glass screens go blank.Anybody have any ideas--otherwise the sim is working perfectlyCheers

Usually an authenication problem... see the help in the PMDG Ops wiki section at their site.

Thanks DanI'm a off ana lookinCheers

Well I looked but could not find an ansewer there ---any other thoughts I hate buying these PMDG aircraft more than once---but have done so many timesCheers

Did you find it: http://ops.precisionmanuals.com/wiki/PMDG_...ng_the_plane.3FIf a reinstall doesn't fix it email PMDG support.Hope this helps.

If you changed your system hardware without reinstalling it'll do this...

thanks everybody---I am sure that I am on the right track now. I neede to break off working on the problem for awhile due to a Doctors appointment--I will start again after dinner---I am so excited about getting my computer fixed up to run FSX/PMDG---Thanks again all. I will post back when I get everything running. I need to take time here---just getting finished with a year long fight with Cancer and the long Chemo treatment---thank God for Flight Simming. cheers