First off, let me say I love this program - big productivity booster. Congrats on developing this software.
Thank you and you are welcome to the messageboard !

I looked through the common bugs and did a search for "powerpoint", but can't find any topics about an issue I'm having, so seeking help here.
Also thank you for using search. The issue was once mentioned
there. No problem.
When I have two or more powerpoint windows open and flip them, I get 1 regular functioning powerpoint window image, plus 1 non-functioning blank rectangles for each powerpoint window I have open.
This is the common behavior for Microsoft Office windows opened as other instances of the same application. PrintWindow API (as well as DWMAPI by the way) show previews only of the active MS office window, and thus of all powerpoint windows open there will be just one preview of the active powerpoint window. Same with Flip 3D in Vista/7:
Unfortunately there is not much to do about it.
