Weird gameplay slow down problem

Hello, Just a second ago I've encountered a weird Unity behavior. When I opened the application all my windows were closed except the Game one, which was maximized. It's a bummer I thought and chose the Default Layout from the Unity set. When I've finished re-positioning of all the windows I hit play and to my surprise the game started in slow motion. I've already checked all the Physics Manager values [1] and they seems to be all right. In my game I'm using some slow motion technique with the use of timeScale but that also is not the case. Anyone ever had the same experience with Unity???

[1] http://docs.unity3d.com/Manual/class-PhysicsManager.html