Random menus displaying - Artist 7

I am running Cubase Artist 7 and when I press certain keys on the keyboard controller, it causes the program to display various menus and dialog boxes. A specific example of this is as follows: I press the C# note and a box pops up asking “Revert to the previously saved version?” There are other notes that call up different menus from the program. Assuming this is a midi mapping issue but I have no idea how to correct this. Thanks in advance for any insights.