exiting from dired

[AGRE%MIT-OZ@MIT-MC.ARPA]

Get a multi-screenful file into a buffer, go to the end, do C-5 C-L
then use C-X D to get into Dired, then use Q to exit it.  The screen,
under all conditions I've tested anyway, will be as if C-L'ed, with
the point in the middle rather than on the 5th line like it was before
entering Dired.  This is probably wrong and presumably Dired's fault.

/phil