I don’t really understand what you are trying to say. Does the pasteboard area not correctly expand when you collapse your stacks? Works properly on my end…
Mylenium
"I don’t really understand what you are trying to say. Does the pasteboard area not correctly expand when you collapse your stacks? Works properly on my end… "
Yes. In CS3, that feature is enabled by setting Maximized Scren Mode. However, CS4 has no such screen mode. (It has one less screen mode than CS3).
Ken
With the zoom Tool selected, try playing with "Fit Screen and "Fill Screen".
None of the suggestions so far make CS4 do what I could do by selecting Maximum Screen mode in CS3. I have the stack of panels against the right edge of the screen and it collapses mostly to the left. The document window and the stack have no effect on each other.
I think I have to dock the stack to the right edge, but I don’t know how to make it happen. As I mentioned, the CS3 screen mode that did it is missing from CS4.