Having this issue on two Ubuntu machines, with 12.04 (32-bit) and 12.10 (32-bit). In my case, on both these machines the menu bar is missing for:
Banshee GIMP
I have tried uninstalling appmenu-gtk but no joy.
In the case of Banshee, Alt+M brings up the menus and I can then using the cursor keys to select what I need. This doesn't work for GIMP though.
Having this issue on two Ubuntu machines, with 12.04 (32-bit) and 12.10 (32-bit). In my case, on both these machines the menu bar is missing for:
Banshee
GIMP
I have tried uninstalling appmenu-gtk but no joy.
In the case of Banshee, Alt+M brings up the menus and I can then using the cursor keys to select what I need. This doesn't work for GIMP though.