I'm seeing a variation of the original bug description.
If I start LibreOffice, usually Calc, it opens full screen with global menu and close, maximise and minimise buttons. If I click the maximise button to restore the program to its default window size then the global menu and buttons disappear. I have not yet seen missing menu and buttons at program start but I have seen them disappear as described several times.
I'm seeing a variation of the original bug description.
If I start LibreOffice, usually Calc, it opens full screen with global menu and close, maximise and minimise buttons. If I click the maximise button to restore the program to its default window size then the global menu and buttons disappear. I have not yet seen missing menu and buttons at program start but I have seen them disappear as described several times.
Running Natty from build 20110321, fully updated.