UV image editor stopped working

While arranging vertices to a UV map the menu stopped working. I cannot select anything using the mouse and no hotkeys are working. The window works in other blend files, but not the one I was working on. Reloading, closing/opening, and opening recent through blender did not help(even redoing the UV map did not work). Currently on windows 7 and need some help.

Sorry, somehow I had UV sculpt on. Either hit Q or go UV >> UV sculpt to toggle.