Dave's and Andy's responses should be your culprit, unless you are
running
a real long cable - sometimes that can do it too but that should be more
consistent than intermittent.
I was really tempted to say that this was caused by the alpha censoring
the
output but, I figured a dumb response like that would not help, hope it
makes ya smile!
bob

Peter Joules wrote:
> 
> Since I have hooked up a VT220 instead of my VT320 I have a strange
> problem, I would like some advice as to whether this is related to the
> terminal setup or to NetBSD.
> 
> The display gets corrupted by reversed question marks at random points
> in the text.  This happens both during the boot process and during
> normal use.  The terminal is set up as English with a North American
> keyboard.  The comms set up is correct for the MicroVAX 3100 to which it
> is attached.
> --
> Regards
> Pete