Sub Menu

In Promis.e, every time I right click on an item, I get a small 'sub' menu that covers the main menu.  This 'sub' menu has to be 'reset' in order to see the main menu.  I didn't have this 'sub' menu until about a month ago when Promis.e was shut down incorrectly during an automatic restart after an unrelated software update.  Can anyone tell me how to eliminate this 'sub' menu?