NM applet launch fail after connecting ZTE MF637 USB stick

[David Nicholas]

Description:
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NM applet fails to launch *after* attempting to connect a USB Mobile Broadband stick to machine.

NM applet worked previously to this, normally.

Fault is permanent, NM applet no longer works at all, regardless of whether or not USB Mobile Broadband stick is connected.

Fault is restrictive, in that:
a) I am unable to add / change / delete wireless points through NM.
b) I am unable to use my USB Mobile Broadband stick at all (cannot connect!!)
c) I am unable to use bluetooth connectivity options, for same reason

Notes:
--------
Software:
- Ubuntu 10.04 LTS new install, AMD64bit

Equipment:
- Toshiba A210 laptop
- USB stick is ZTE USB modem MF637

Logs:
-------

1/ VT report after activating applet manually:

dave@Saturn:~$ nm-applet
** (nm-applet:2943): DEBUG: old state indicates that this was not a disconnect 0
** (nm-applet:2943): DEBUG: foo_client_state_changed_cb
** (nm-applet:2943): DEBUG: foo_client_state_changed_cb

2/ .Xsession errors file

** (nm-applet:1427): DEBUG: old state indicates that this was not a disconnect 0
Initializing nautilus-gdu extension
** (nm-applet:1427): DEBUG: foo_client_state_changed_cb
Starting gtk-window-decorator
I/O warning : failed to load external entity "/home/dave/.compiz/session/10818dbdde50bb8ee127600344646816800000013580027"
** (nm-applet:1427): DEBUG: foo_client_state_changed_cb
Traceback (most recent call last):
  File "/usr/lib/python2.6/dist-packages/blueman/plugins/AppletPlugin.py", line 105, in _load
    self.on_load(applet)
  File "/usr/lib/python2.6/dist-packages/blueman/plugins/applet/PulseAudio.py", line 115, in on_load
    if int(version.split(".")[2]) < 15:
ValueError: invalid literal for int() with base 10: '21-63-gd3efa-dirty'
Nautilus-Share-Message: Called "net usershare info" but it failed: 'net usershare' returned error 255: net usershare: cannot open usershare directory /var/lib/samba/usershares. Error No such file or directory
Please ask your system administrator to enable user sharing.

3/ Syslog (attached separate file, lengthy)

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Please advise if further details are required.

/D