Hi @microsuperman,
Your personal Startup applications are stored in ~/.config/autostart/
so looking there may reveal the problem.
The ~/.config/
directory is hidden. If you’re familiar, you can use Caja. Otherwise this command in a terminal would be useful:
ls -al ~/.config/autostart/
Here is what I see in a 17.04 VM and I did successfully add startup.sh myself:
bill@UM1704-vm:~$ ls -al ~/.config/autostart/
total 24
drwxr-xr-x 2 bill bill 4096 Apr 18 22:08 .
drwxr-xr-x 17 bill bill 4096 Apr 18 22:08 ..
-rw-rw-r-- 1 bill bill 225 Apr 15 09:52 blueman.desktop
-rw-rw-r-- 1 bill bill 405 Apr 15 09:52 deja-dup-monitor.desktop
-rw-rw-r-- 1 bill bill 312 Apr 15 09:52 mate-optimus.desktop
-rw-rw-r-- 1 bill bill 173 Apr 18 22:08 startup.sh.desktop
bill@UM1704-vm:~$
What do you see?