[Coco] NitrOS9 and RGB2VGA issue

[Ron]

Hello,

I thought I saw a message about this issue previously, but unable to 
find it.  I tried booting up a NitrOS9 image and  noticed the left most 
column is missing on my display (using the RGB2VGA adapter). In other 
words, I'm missing the first character of every line.

It's not a display adjustment on the monitor -- I'm sure I saw something 
about this and remember it being an easy fix.

Thanks!

-Ron