This problem (for me) just started happening  out of the blue. I've got to start undoing every change that's happened to my PC since a few days ago. I'll tell you right now it's none of the obvious suspects.

Robert after pulling my hair out for 2 months on this problem I finally figured out the cause of the screen freezing issue on my system. 

 

Multiple reinstall/clean installs reformat OS etc nothing fixed it as in your case.

 

Even though it sounds strange this issue only happens on P3Dv2 but it is not a LM problem as far as I can see. It is a driver issue with a Corsair keyboard - very repeatable now that I tracked it down. I uninstalled their software and the problem went away when using default windows keyboard driver.

 

How I traced it down:

 

I stumbled across a freeware program to detect application hangs

 

http://www.nirsoft.net/utils/what_is_hang.html   "WhatIsHang"

 

I ran it and just left the window open while using Prepar3d and sure enough when P3D was "hanging" when clicking in different windows etc. I clicked on it and it showed that a USB device appeared to be the culprit.

 

I Still couldnt figure it out since it only shows a VID(VendorID) and PID(productID) and I have many USB devices - found a webpage for USB VID's and did a search within that page to figure out exactly the device  - http://www.linux-usb.org/usb.ids

 

Turns out it was Corsair and my corsair gaming keyboard causing the issue.

 

Anyways the "WhatIsHang" program may help you track down your problem if you haven't blown up your PC and started over. I suspect it is hardware related.

This- what Slayer said... I've found that to use USB hardware controls in P3d you have to make sure the power settings are correct for the USB ports. Make sure in your windows properties for USB that "power off when not in use" is not selected- it certainly creates a smoother experience with the 777 in P3D. 

Gents-

 

Interesting...  We'll have to keep track of that for support because i know it will crop up with other users.

 

In my case- I simply couldn't get rid of the pausing... I wound up doing a clean install of the entire OS... (no change) then got annoyed and did it again... and the problem went away...

 

No idea what it was....  but i still have it on my second development machine.

This could be a stupidly obvious suggestion and chances are you are already doing it but have you tried running everything (especially P3D) as administrator (by specifically right clicking on the run button and selecting "run as administrator". I doubt it will work but I didn't see the suggestion anywhere else.

 

 

-Jonathan Bass

Captain Rob -

 

I've seen this before when playing other games - sorry, I realize one does not "play" a PMDG sim, but you know what I mean.  One of the issues I've seen has to do with the on-board NVidia or Intel video processors.  If your board has one, ensure that it is disabled in the BIOS if using discrete video cards. 

 

Example:  My ASUS ROG Maximus IV Extreme-z has an Intel HD4000 on-board graphics processor - it doesn't show up in the system specs.  I don't use it; it can be used by the system as "helper processing" even when running triple SLI like I do, but often can cause a conflict.  It will show up in your device manager along with your discrete card(s). Disable it in the BIOS if you have it.

 

Also, P3D is now optimized for SLI use as I understand it.  Are you using this?  If not, try it; if so, take a card out and go back to a single card.

 

If you wouldn't mind, please send me a PM with your system specs, who made what, monitor size, resolution you're using, any firmware info, any external devices, any other info including a detailed description of how, when , and what, etc. and I will do my best to help you.  I've been building fast computers since 1998 and seen a lot of things.  I'll help you if I can.  I'm not interested in any PMDG-related info on your system and will sign an NDA if you need it.

 

Best,

 

Kevin