Egg on my face. Although I disabled DE's via the Configure Your computer, I did not do so via the Configure Your Desktop. Once both were disabled LibreOffice 4.0 behaves normally. All menus are populated. The title bar was simply set to laptop so that's why it was different. Strange that this only started with 4.0 and not before.
You were certainly heading in the right direction by suspecting desktop effects with your comment about KDE and Full Monty being very similar Pinoc. As you well know one difference between the two comes to desktop effects. Full Monty cannot use them. Good detective work in suspecting them. So I guess I'll have to go with no effects. Curious that only LibreOffice is affected by the DE's being enabled.