A reply to an old thread, but I have the same issue. In my case, everything works well except when I enable "wobbly windows", which is where dragging a window messes up the colors. If that option is off, then dragging a window works as normal. Also, the dragging looks worse if the check for making windows transparent when dragged is on.
Unfortunate, the request has been put in, but, nothing new to report on this one yet.
Thank you,
Basj,
Stardock Community Assistant