My problem is that "sometimes" the child window pops onto the screen with the control bar offscreen at the top. I can't grab it to move the window and all I can do is hit [Esc] to close it. Not a major thing but "sometimes" it works just fine. I've been unable to detect the pattern.
I would have given you the name of that preview window but I can't see the header

I'm on 2010.1.0.10 and my screen is 1024x768
Chaz
Love MWP old and new!