Using 13.10 64b Unity.
Found this fix to regain use of Menu Bar Hot Keys (Mnemonics):
Remove indicator-appmenu via Synaptic or
via Terminal: sudo apt-get remove indicator-appmenu.
Log out/in.
Not certain yet if this creates any other limitations or causes any buggy behavior, but it does allow for Alt+letter to pull down menus.
Using 13.10 64b Unity.
Found this fix to regain use of Menu Bar Hot Keys (Mnemonics):
Remove indicator-appmenu via Synaptic or
via Terminal: sudo apt-get remove indicator-appmenu.
Log out/in.
Not certain yet if this creates any other limitations or causes any buggy behavior, but it does allow for Alt+letter to pull down menus.