Hey guys,
I'm searching for some kind of software that allows 2 or more users to log in to a chat room and work together on some pixel art.
I've seen several pages that offer a paintchat but that's not exactly what I was searching for.
It should work like a messenger or a network and it should have a simple GUI like for example paint.
Does anyone of you know such a software?

I tried OpenCanvas (which didn't work for me) and MSN Whiteboard (which is useless for spriting).