This article is from the Amiga Networking FAQ, by Richard Norman with numerous contributions by others.
You can make AMosaic appear on a custom screen by using the MUI Prefs, BUT don't do it while Amosaic is running
If AMosaic is running when you change the MUI prefs to a custom screen, it will crash your machine! ( At least V1.2 of Amosaic did this, other versions may be fixed)
Simple fix: Run MUI prefs and change the screen, and THEN run AMosaic.
 
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