It's a not a real problem but it keeps bugging me.
Whenever I open a document, or create a new one, the window is very small. I can resize it of course, but I don't recall AWP doing that before (I'm using 4.0.6.11).
If you do not want to see the cascade of the document windows, you can switch back to the maximized state of the document windows. Just double-click the title bar of the document window.
With the same configuration as above and the same open documents, a newly created document has now a sizeable window. It's rather confusing - but as I said not very important.
You can double-click the title bar of the document window to make it non-sizeable.
You can choose the "View | Cascade" menu command to make the document windows sizeable.