What I meant was that we both assumed it was a WINE issue, but it's not. What he is describing is how it works in 7.x - basically, nothing happens when you press ALT, but the menu appears after releasing ALT. Also, that if you ALT-TAB, it will bring up the menu even though it really shouldn't.
I'm not sure if this is the only way to make it work or if there's another reason it's this way, but what he described is how 7.x works even without WINE. I think we may see a lot of people who are hiding the menubar coming in here asking about that simply because it's an unusual way to have hidden menubars work.