New rig - all is silk smooth...

Originally Posted by mazex

Mmm, but I'm running on a Samsung 2233RZ monitor (I love the 120Hz too much to swap it out!). So the resolution I use is 1680*1050. I guess you're not on your 30'' ?

I run it on my 30" but at 2560x1600 I get the jerkiness down low over land (to be expected generally speaking, though it doesn't happen in RoF) AND at 1920x1200, which I do NOT expect.

It's not a show-stopper, it's most noticable if I look away from straight ahead, and even looking 90-degrees sideways at 50m altitude it's not too bad. But RoF has zero and IS "silk-smooth".
The real show-stopper is the lock-ups. And the inability to run FSAA and AF is leaving the image looking very poor.