Did you just upgrade to Ubuntu 8.10 (pre-release)? Are you wondering why the Network Manager Applet is looking all KDE-like?

Yeah…

It looks like GNOME will start the KDE version of nm-applet after upgrading to Intrepid on systems where KDE is installed.

Bug: https://bugs.launchpad.net/ubuntu/+source/network-manager-applet/+bug/270376