The last few days, I've not been getting the pop-up box when I receive a PM. It's enabled on my options though, so I'm not sure what the problem is.

Is this a systemwide fault, by any chance? Or is something just messed up on my end?

Has anyone else had this problem?

Well, the JavaScript loads after the whole page does, so everything has to be fully loaded from the main page, until you get the box. ;)

I havn't been getting them either........ (but I do have javascript enabled :D)