I had the Jittery problems too.
I fixed it by running setup.exe and press no on the 75hz test. (Not surprising because my monitor is supported at 2048x1152 @60hz only).
I then accepted the 60hz test, and did a test in game with my mule, and the jitter was fixed.
*edit* Actually, run setup.exe and run the tests until the Maple Logo doesn't jitter. Once you get that, hit yes and you should not jitter in game.
I fixed it by running setup.exe and press no on the 75hz test. (Not surprising because my monitor is supported at 2048x1152 @60hz only).
I then accepted the 60hz test, and did a test in game with my mule, and the jitter was fixed.
*edit* Actually, run setup.exe and run the tests until the Maple Logo doesn't jitter. Once you get that, hit yes and you should not jitter in game.