[Gambas-user] Repeat: Severe problem with update...

[ISS Boss]

Can anyone help me here.  I am very new to Linux and haven't a clue how 
to fix this error.

I have 76 updates -- ALL from Gambas.  I am currently running Gambas
3.5.2 and apparently that is as far as I can go unless someone can tell
me how to get past this error from the Update manager:

"Requires installation of untrusted packages."

"This action would require the installation of packages from not
authenticated sources"

Following that, my only option is to close the error window, which
resets the Update Manager back to the start point again, displaying all
76 updates available.

My system:

[System]
Gambas=3.5.2
OperatingSystem=Linux
Kernel=3.5.0-48-generic
Architecture=x86
Distribution=Ubuntu 12.04.4 LTS
Desktop=GNOME
Theme=QGtk
Language=en_US.UTF-8
Memory=2017M
[Libraries]
Cairo=libcairo.so.2.11000.2
Curl=libcurl.so.4.2.0
DBus=libdbus-1.so.3.5.8
GStreamer=libgstreamer-0.10.so.0.30.0
GStreamer=libgstreamer-1.0.so.0.1.0
GTK+=libgtk-x11-2.0.so.0.2400.10
OpenGL=libGL.so.1.2.0
Poppler=libpoppler.so.19.0.0
Qt4=libQtCore.so.4.8.1
SDL=libSDL-1.2.so.0.11.3