I'm really sorry if this has already been suggested but would it be possible to make it that so when a users message box is full an alert box comes up saying your pm box is full or your message box is full or something like that?

that way although it's slightly more intrusive it would solve alot of issues, i mean you have the pop up for when someone recieves a pm just thought that this would be a good way to solve the problem that alot of people experience, namely getting in touch with a person with a full message box.

We'll look into this. Good suggestion!

ditto :-)