Is this tiling behavior in Mission Control normal? The first image's arrangement is OK, but the second image's is atrocious; there's an iTunes icon smack dab in the middle of the screen.
http://i.imgur.com/1dcsl.jpg
http://i.imgur.com/61ss5.jpg
http://i.imgur.com/1dcsl.jpg
http://i.imgur.com/61ss5.jpg