network manager applet cannont be invoked when clicking on it's icon on the top panel

[summerishere]

Binary package hint: network-manager

when i click on network icon on top panel , a drop down menu appears.

Clicking on any item there ( about / edit connections etc) does nothing, no window appears ..

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: network-manager 0.8.1+git.20100810t184654.ab580f4-0ubuntu2
ProcVersionSignature: Ubuntu 2.6.35-27.48-generic 2.6.35.11
Uname: Linux 2.6.35-27-generic x86_64
Architecture: amd64
CRDA: Error: [Errno 2] No such file or directory
Date: Wed Mar 9 23:07:20 2011
Gconf:

IfupdownConfig:
 auto lo
 iface lo inet loopback
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
IpRoute:
 192.168.0.0/24 dev eth0 proto kernel scope link src 192.168.0.2 metric 1
 169.254.0.0/16 dev eth0 scope link metric 1000
 default via 192.168.0.1 dev eth0 proto static
IwConfig:
 lo no wireless extensions.

 eth0 no wireless extensions.
Keyfiles: Error: [Errno 2] No such file or directory
ProcEnviron:
 LANG=en_IN
 SHELL=/bin/bash
RfKill:

SourcePackage: network-manager