Enabling mouse on ver 1.00 1/2: Push STOP, choose System Setting then push RETURN
Enabling mouse on ver 1.00 2/2: Move pointer to Mouse radio button with GRAPH+cursor keys, push GRAPH+SELECT then RETURN
ver 1.20 default screensaver
ver 1.21 default screensaver
ver 1.00 Overview disk title
Early ver 1.00 title dated Dec 5 1990
Updated ver 1.00 title dated Mar 15 1991
ver 1.20 GT Book startup 1/4: Open the Change drive menu
ver 1.20 GT Book startup 2/4: Insert FS-A1GT System Disk 3 then select drive A:
ver 1.20 GT Book startup 3/4: Doubleclick the GT Book icon
ver 1.20 GT Book startup 4/4: GT Book title
ver 1.21 usage