Thanks, Mike Sollins
p.s. The door still lines up just fine in the jamb when closed.
Oh, another thing: I had thought the short screws holding the hinges in the jamb were meant to be replaced with longer screws that would go all the way into the framing of the rough opening. But this prehung door is built in such a way that those screws, if lengthened, would go into the edge of the sheetrock, not the framing. Is this typical of prehung doors?