Unity 3D Windows & Tabs Not locking in place.

Hey Dudes,

I was playing around in Unity 3D. I hit a keyboard shortcut, And all my pannels disappeared. I mannaged to to get the windows back .. Such as "Project" "Game" "Inspector" But for some reason i can't get them to lock back into place, If you get what i mean ..

Heres a screenshot: http://gyazo.com/00ac7cc4943594c147027a031399d559

.. As you can see the windows or tabs, Are out of place and will not snap back.

Any help would be gladly appreciated!

Regards,

Dan