#3
Thnx.
When I disable bob mode and software scaling video don't show at all. When both are on the video is twitching. And then only software scaling is on moving parts of video looks like in separated lines. Like every second line is slipped to side. It's normal? (its better than with bob mode :) )

Sorry for my English

I think you'll understand.

#4
its seems that ´software scaling ´ is needed by your used graphics card...
And then only software scaling is on moving parts of video looks like in separated lines
try other (newer/older) driver for your graphics card or use software mode (switch to it in device list)