Quote Originally Posted by Soquili View Post
Make that try "Export as Animation"

Many applications mistakenly use Save for everything when they should use Export for formats not their native file.

If you are trying to animate a still image, that will not work. You must start with a moving image or great one using drawing tools.

Are you wanting the image to rotate or spin?
When I open this http://i43.tinypic.com/10em074.gif it seems to spin OK.