I noticed a quite odd behavior when moving my fighter very slow. Capships start to "jump" a little. Not big jumps but still annoing enough to be irritating. Special when you are just crusing around or when you try to get a turret into your crosshair, moves just a little and then it starts to "jump" around.
As for every other movement the game runs without any problems I had with other builds.
At the moment I am using fs2_open_367_p4.exe in 1280x1024, OpenGL without AA enabled via Nvidia drivers.
Do you mean something like small jumps, just like when your PC is too slow and the FPS makes jumps ? I have the same problem, but thought it was related to my PC.
I'm using the same values like you do btw, though I have a Radeon 9800 pro (and AA disabled I think)
Have you normal Freespace running ? Just to make sure that our data isn't the problem, our capship modelfiles are very big. I can't test that at the moment.
I suggest you mantis it right away (but use the correct mantis

)