So, I infer this is only a problem with Pprune
The example you cite seems to be Mr. Draper's piggy image. Click
here if you really need to know what you're missing.
I don't have the problem, as I don't use IE, so instead of the little white box containing a red
X all I see is a blank.
Maybe avatars have been disabled by the site owner.
But I don't intend debugging the script any further.