Hi, I have http://www.geometrywars.wordpress.com and made a .Gif file from Photoshop to put in place of the original banner. I have uploaded it, but it doesn’t move (a .Gif is a moving file). So my question is, does WordPress allow .Gif’s in their banners? and before you ask, yes it is a working .Gif, I have tried it at other sites.
I’ve got an animated gif in the body of my blog now, and it works just fine. Also works in a sidebar widget. Can you post the URL of the gif so we can check it? Sometimes I’ve managed to save gifs that don’t seem to work, and I have to re-save it.