> I see from the mailing list archives that the 500au works fine; anyone
> have any luck on the 600au?  The machine runs DU/Tru64/whatever it's
> called today/ just fine.

I have it running fine on a pair of them.  I use the serial port.  
I don't know anything about displays. 

I had trouble with a 3rd 600au system.  I forget the fine print but 
I think I can look it up.  It was something about the firmware setting 
something up in a strange mode.  A simple edit and kernel rebuild 
fixed things.