Over time I noticed I would get a "this application is experiencing problems bla-bla-bla" with the settings in the picture above. Usually it would happen every 5th or so mission when loading the debrief-screen or on a very rare occasion in-game at random times.
When I disabled "Force Trilieaner Mipmapp" and "Autogenerate mipmaps" everything is peachy.
I've flown around 15 missions with these latest changes and never experienced any errors.
Maybe something to add to your faq, AV8R?
Do you want me to make a new screenshot with the settings or overwrite the current picture?

edit: Here's my current settings: