Okay, I played around a little in the setting.
Not matter which setting I change it doesn't effekt the Overlay, Preview (system). There is no preview.
But it does effect the "Display with Filters" setting:
uncheck "Use DirectX for display panes" fix the glitchy moving VirtualDub preview
It is also fixed when Direct3D 9, or OpenGL or Direct3D 11 is checked.
Any other optioncombination you would like to know?
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