I've just installed the latest version, 10.51. Instead of a menu bar, at the top, it has a menu button, top left, (similar to Office 2007 button). One of the options on this is to "Show menu bar". I clicked this and the menu bar does show, but the button disappears... and I can't get it back! I'ts suppossed to reappear after a restart,, but it hasn't, (Both an Opera restart and a Windows restart have been tried). I tried a reinstall over the top, choosing the "repair" option, and that hasn't worked. And I've tried the various shortcuts that I've got from elsewhere, Alt key etc.
Any suggestions as to how to get it back, short of a complete uninstall/reinstall, (which I'd like to avoid due to various passwords etc being saved.
Hm - I've just been playing with Opera 10.51 adding and removing the menu bar. When I have removed the toolbar I then have to click on the Opera button to tick against show menu bar. the menu bar doesn't immediately appear. I have to hover the mouse over its area and it appears. Have you hovered your mouse over the area where it should be?
I've just ried moving my Opera button around. You're supposed to be able to add it to other toolabrs. I find that I can only add it to the main menu and tab bar. You could try adding to to a toolbar see click here and expand menus and toolbars.