[Coco] Un-upgraded 3124 Multipak/Coco3 Question

[David Grimmel]

I know I need to upgrade my white 3124 multi-pak to be 100% compatible with 
my Coco 3, but havent gotten around to it yet. While reading a Marty Goodman 
Q&A in the July 88 iss of Rainbow, he says, "even if your Coco 3 {appears} 
to work fine with your Multi-Pak, the upgrade is required. The upgrade may 
prevent slow, subtle damage to your Coco 3". I knew that using it 
un-upgraded my cause small glitches and software problems, but I didnt think 
it would cause any physical permanent damage. What damage is the good DR. 
referring to? Have I already damaged my Coco 3 by using it with an 
un-upgraded 3124 multi-pak?

Dave