It's really annoying to send PM's when that darn window keeps popping up asking if I want notification that the message was received by the other person. I haven't found a way to turn that off. If there isn't a way already, let's do away with that pesky little pop-up! (I know it only takes a second to hit 'cancel' but, really, who uses that option anyway??)

 

True that. Forgot about that one. I think, though, that you can hit either the ALT or CTRL button when you click on the 'OK' button and it will allow the window to pop up.