problem for autostart program

[rastersoft <raster rastersoft com>]

Hi all:

I'm using Gnome Shell 3.8 with Ubuntu 13.04, the "appindicator support" 
extension 
(https://extensions.gnome.org/extension/615/appindicator-support/) and 
cronopete (a backup program).
Unfortunately there is something odd: cronopete is launched as an 
startup program, with the shell. Until now (up to gnome shell 3.6, and 
other desktops like Unity, gnome classic, elementary os, bare Gnome 
Shell 3.8...) all worked fine, but with Gnome Shell 3.8 and 
"appindicator support" extension it fails to be launched at startup. I 
created a little shell script that records the messages at launch, and 
this is the result:
Gtk:ERROR:/build/buildd/gtk+3.0-3.8.0/./gtk/gtkwidget.c:14133:gtk_widget_unregister_window: 
assertion failed: (user_data == widget)
But if I add a "sleep 2" before running it at startup, it works fine. 
Also if I launch it manually from a command line.
I suspect the problem is because the extension is launched at the same 
time than the startup programs, so the question is: is possible to start 
first all the extensions, and only then launch the startup programs?
Thanks.

--
Nos leemos
                         RASTER    (Linux user #228804)
raster rastersoft com               http://www.rastersoft.com