When using the AM62A Terminal Driver with AlphaWRITE, AlphaCALC
or even a simple BASIC program, sometimes the user would get
bogus characters mysteriously appearing in the Input Buffer
when changing from 132 to 80 columns.
The problem was apparently solved when I cleared the Input
Buffer. I have notified Alpha about this telling one of their
software people of the problem and the apparent solution. You
might give it a try because the result pleased our users! Maybe
it will be a real patch soon.