Well, you do have a LOT of third party plugins, and custom scenery installed. I don't see any signs of known issues in there, though. That puts you in a spot that's pretty tough to debug. I think it's one of two things:
- You may be running out of memory, either system memory or video RAM, which can happen if you have too many add-ons installed even on a beefy system (especially orthophotos)
- Another add-on is corrupting memory that SkyMaxx Pro depends on.
Either way, the only way to isolate the issue is to start un-installing things until SkyMaxx Pro starts working reliably again. You either have too much stuff installed, or something installed that is messing with us. One way to see if it's really a SkyMaxx issue would be to install a fresh copy of XP11 somewhere with no add-ons, add SkyMaxx Pro to it, and confirm that it works reliably on its own.
Your NVidia video driver is a wee bit out of date as well... I really doubt that's the issue, but updating it couldn't hurt.