>What would be the chances of this VAXstation 3100 M38 having color support
>on it's built-in video? (if none, which pins should I use for a black and
>white monitor?)

The built-in video is not colour. The GPX and SPX add-in boards both add colour 
- if one is fitted it sits above the motherboard and cannot be missed.

>What does the M38 in the name mean anyway? I picked up this machine as
>opposed to a regular  VAXstation 3100 because I figured it was somehow
>"better". Was this a good assumption?

Assuming you have something that claims to be a KA42-B on power-up - rather than 
a KA42-A where someone has changed the little insert on the box :-) - then you 
are getting about 35% more horsepower (3.8 VUPs versus 2.8 VUPs).

Antonio

Antonio Carlini                            Mail: carlini@marvin.enet.dec.com
DECnet-Plus for OpenVMS Engineering
Digital Equipment Corporation              Worton Grange, Reading, England