it is actually the network and there has been a thread about this in the past. Them network guys even use the wrong pop-up type (according to Shane) since the one that is meant to be used allows tournament registration from the pop-up and at the same time isn't meant to freeze up your table.
But same as the auto-updater Bahnjib hasn't been able to fix that part of the code yet so they spam you with the useless one