Currently, when you have a new message in a chat tab other than the one you are currently on, the icon flashes for a moment then goes back to normal, so if you aren’t Runescape Gold paying attention you completely miss the fact that you have a new message.
Please make it so that rather than flashing briefly (which can be annoying if you are getting lots of messages) it changes the color of the icon/tab until you go to view the new messages.
Puoljumala, turn the game messages off in your private message tab, it is turned on for no reason.
Also I agree with this, as it happens to me quite a lot that I am missing out on some messages, especially at the Grand Exchange!