I could not figure out how to have GNOME 3 start Pidgin on login (in GNOME 2 it was part of my session and started automatically, but since installing GNOME 3 it was no longer automatically started).
A search on the net revealed a solution: start "gnome-session-properties" from a command line, then you get the same interface that used to be available in the menu for setting up startup programs.
GREAT HIDING OF FUNCTIONALITY, BATMAN!
Ok, so now I have Pidgin starting automatically on log in again.
I could not find a way to get GNOME 3 to respect my choice in window manager. It kept reverting to its default. So finally I just have given up, and added "fvwm -replace" as a startup item with gnome-session-properties.
GOOD GRIEF, WHAT A HACK, ROBIN!
Since I cannot have vertical panels for launchers, which I have been using for at least 11 years, I am starting to create icons on the desktop to replace the launchers.
DASHINGLY SPLENDID GOOD HALF WITTED WORKAROUND, ALFRED!
More to come, I am sure.