How do you add animated backgrounds to the conversation window on MSN Messenger?
open up a chat window, look for two little boxes (blue & green) hover over it and it will say ‘select a background for your conversation window’ click it and once the new little box window opens select ‘show all’ and then at the top you’ll see ‘dynamic backgrounds’ the 3rd one is the ‘koi pond’ select it and if you want it as your default background (it’ll be the koi fish for every conversation) select ‘set default’ then ‘set’ and your window will have swimming koi fish 🙂