I don't know if this is related to my Window Manager (I'm using XMonad by the way) but all the menus within the program are hidden under the main canvas if there's some file open. One implication of that is I can't invoke any 'action' - since a action is only accessible through the menu on the menu bar or by pressing spacebar on the canvas. I also see any dialog box as that is elipsed by the canvas as well.
What's interesting is that if there's no file open i.e. the canvas is empty, everything works fine.
I'm running Linux 3.9.9-1 on Arch Linux distro.