keeska

I have had this problem in various addon aircraft for awhile. Never knew about the uiautomationcore.dll file. After doing some research I discovered on a few forums that it mostly occurs when going to the full screen VC view. Switching to windowed mode and back(Alt-enter)cures it for many people. Usually I only have to do this once during a session but sometimes the problem pops up again. Same switch to windowed mode and back cures it for me. I also read that some people think it is a nvidia video driver problem. That makes some sense to me since for me it started occurring after an nvidia driver update.

Yes to both previous replies.I opened a support ticket. Got the fix from support very quickly and downloaded it a little while ago.(Not sure if I can post the response from PMDG to my ticket in this forum so I won't for now.)Thank you to PMDG support for a quick response!

I just received a new PC with Windows 7 on it. Installed FSX, SP1 and SP2 per the PMDG instructions (not in \programs folder and running FSX after each phase of the installation).Then I installed the 737NGX. Started FSX and selected the 737-800 PMDG. Answered the a couple of "Do you want to run this" questions. The up comes anther One of the "run this" question and immediately the PMDG activator dialog box pops up covering the FSX question. I try to enter my license code but after I try the first character it disappears. I also cannot move the PMDG dialog box to answer the FSX run this question.Using task manager I see there are 20 or more "PMDG activate" and "online Activation" tasks running. So the PMDG dialog box is looping creating new tasks.How do I get past the FSX "Run this" question and enter my License code for the 737NGX?michael