Comment 11 for bug 371533

The HuaweiAutoStart.desktop is part of drivers for a GSM-3G USB "key" to connect to Internet.
The "key" is:
HUAWEI Mobile Connect
Mudel E-169 HSDPA USB Stick
FCC ID: QISE 169

The content of HuaweiAutoStart.desktop are:

==================
[Desktop Entry]
Name=Huawei Ivman AutoRun
Encoding=UTF-8
Version=1.0
Name[en_US]=Huawei Ivman AutoRun
Exec=/usr/local/AliceMOBILE_E169/autorun/huawei_autostart start
Icon=/usr/local/AliceMOBILE_E169/autorun/mobile.gif
Path=/usr/local/AliceMOBILE_E169/autorun
SwallowExec=
SwallowTitle=
Terminal=
TerminalOptions=
Type=Application
URL=
X-KDE-SubstituteUID=false
X-KDE-Username=root
X-GNOME-Autostart-enabled=true
==================

I already disabled this because KDE startup complained about not being able to overwrite some file in /usr/local/...
I originally installed the Linux drivers from the connection provider (TIM == Telecom Italia Mobile), I had no problems until I upgraded to jaunty.
I currently do not use the driver at all; I do use NetworkManager to connect.

I am now in a KDE session.
Soon I will close it and try again a Gnome session.
I will let You know if disabling HuaweiAutoStart.desktop does actually cure the problem.