I have read related questions here, but my problem in 11.10 is:
I have no "startup apps" item in "system setting" at all. How can I get it back?
Startup Applications can be found in the Panel in the upper right of the screen below the screen icon:
HTH. Have a nice day. :)
Just moved a bit, but it is there.
Read it here ....
hope it helps
I was searching the system tray issue and came across the parting laments regarding Unity.
All you have to do is open your terminal and type sudo apt-get install gnome
-or-search gnome-fallback for gnome shell options. The only thing I missed was Users and Groups, it seems Gnome tools were not included, but another search found that as a solved issue (so the package is available).
gnome-session-properties
to start it.