Thanks to Michael Kazlow...great to know.
Although...I have NO IDEA WHY Adobe would ever do this in the first place. If you're going to allow the menu bar to disappear then why not just have it re-appear when you go to the top of the monitor...or just don't have this happen. ugh.
ok...venting = accomplished. hahaha. thanks again, Michael...you saved me much more frustration.
Well. I know this thread is rather old. But Google just sent me here. So I would like to contribute.
I am using Adobe Reader XI and still have this design error!!!
Please take a look at IE 10. I can easily unhide the menu by right clicking on the top of the window.