Did I press a key by accident? I can't right-click on the geo or the screen. I use right-click on the geo to bring up my sub-object selection menu. If I have an object selected and am using the move tool, right clicking lets me move the object w/o using the gizmo.
You can also go to Edit > Restore Default Settings in your Prefrences window. They call that right click menu the 'marking menu'. I couldn't find it in the display settings, though.