PMDG 747-400 panel problem

[Qavion 19]

"How do I get these to turn back on."Read the FAQ's, "sticky" posts and use the Search function ;)Cheers.Q>P.S. This question has been asked several times a week since the 744 was released ;-)

[Guest aarskringspier]

You have an authorisation problem. You need to uninstall then reinstall and make sure the information you enter into the validation prompt is the information you used when you purchaed the 744.

[Guest clipper1321]

thanks

[Guest clipper1321]

When the 747 is at the gate and all systems are on it is fine. But within 5 minutes all 3 displays turn black. Everything eelse on the panel works its just the three displays. How do I get these to turn back on. Thanks in advanced.