Ok I'm Bumping this (not a double post) because it's driving me nuts.
I tried some bundled solution to get rid of that judder. Thing is that I got lots of other problems.
Going back to normal was easy as I fiddle with those settings a lot... but of course can't find a solution to all of my video playing problems.
So...
It seems the judder problem is linked to the 23.976 Fps most anime are encoded to.
The problem is that LCD panels are at 60Hz/Fps most of the time, so there's no frequency nearing a multiple of 24fps available.
I thought I had it sorted with PowerStrip and Reclock, but the judder is still there in every "slow motion camera movement" in all 23.976 encoded anime, ie almost all of them.
Maybe it's due to the fact that the Nvidia 8800GT/Viewsonic VP171b can't go below 48,8Hz/Fps or can't go to 72Hz FPS (screen limitation is 60 @1280x1042)
Seems like avisynth can be of help, I wonder if anyone has ideas around that subject.
Gosh, the AV world really is a jungle, and when connected to the Computer world, you really get lost easily