Gravatar Fuzzy….. !?!

I set up a Gravatar for my blog posts.
For some reason, it looks fine on the Gravatar site… but looks terrible when posted on my blog. Does anyone know why this would be happening?

Here is a post that I have commented on so you can see the “bad image”.
http://www.andiosiek.com/?p=53

And here is the link to the same image through Gravatar.
http://www.gravatar.com/avatar/5eeb9203dd3d1d775d02d2a83031cee5.png

Both of them are at 80 x 80px… so that shouldnt be the issue…