Whenever Outlook sends and receives the Send/Receive Dialog box keeps appearing and it is driving me INSANE.

It doesn't matter whether the 'Don't Show This Dialog Box During Send/Receive' box is checked or not or whether the button at the bottom right corner of the window is pushed in or not, it keeps happening. I know there are others out there that are having the same issue.
What makes it even worse is that it is somewhat intermittent. Sometimes I'll go hours and it works fine then like today it pops up ALL the time.

It is getting beyond an annoyance. Anybody know how to fix this before it puts me in the nut house.