[Simh] vax / netbsd screen characters during install

[netbsd]

Hello. 

I am a total newbie to simh.  I followed the directions for installing 
NetBSD on simulated VAX [on Windowx XP SIMH] at: 

  http://www.netbsd.org/Ports/vax/emulator-howto.html 

replacing ka655x.bin for ka655.bin, and using NetBSD 3.1 instead of 2.0.  I 
can get to the point where I get to type: 

  boot dua1: 

and it does indeed start booting NetBSD and brings me to the installer.  
HOWEVER, the NetBSD installer displays its menus with lots of strange 
characters all over the place (the terminal it thinks it has is very 
incompatible with my Windows XP cmd shell, and it is difficult to figure out 
what the screens are asking me for. 

Is there some way to work around this? 

Thank you! 

  - sam -