Bruce,
don't be satisfied that you now know how to exit Sbitx to access the RPi menu.
Evan wrote a solution for what doesn't work well for you.
Unpack this file, then rename the current file with the File Manager to the .OLD extension.
Then copy the extracted file. That won't work yet.
Only if you integrate it into Sbitx in the terminal program.
Type: cd sbitx <enter> ./build sbitx <enter> sudo reboot <enter>
(Note: dot slash build sbitx)
It restarts and the screen size of the Sbitx already fits into the hdmi screen.
If you did something wrong, you can go back to the previous version.
Delete the file, then rename the .OLD file to without old and include it in sbitx.
I hope I didn't miss anything and you will be able to use it.
--
Gyula HA3HZ
--
Gyula HA3HZ
HA3HZ