[pyrtsa]

Oh, good to hear. It's how Posterous implements the embedding of Github Gists that probably is to blame here.

I'm still thinking whether to switch my blog to another platform, maybe even an own server, as that's not the only problem I've had trying to embed source code examples to my posts.

Much of it boils down to the use of the Tiny MCE editor, that I'm a bit surprised Posterous is enforcing everybody to use!