Does anyone here have the same issue as I have?

When I quit out of a level via the menu and I want te return to the main menu, it shows the Pause Menu against a black background. I can move the mouse around but nothing is happening. When I press Alt-Tab to return to the desktop, and once there I go back into the game, it loads the main menu just fine. I have no idea what could be causing this...

Nevermind, it seemed to have fixed itself. This can be closed :P