Invisible Item bar and invisible menu??

[DeBears 0]

I am currently unable to save my game because when i press escape to go to the main menu all i see is my mouse but i cant see the 'settings button' or the 'back to main menu' button ect. On top of this I am unable to see my tool bar at the bottom of my screen.  Please tell my the game saves automatically and the past 2 hours of game play wasn't for nothing.