Clicking CPU Monitor applet opens web browser when gnome-system-monitor isn't installed

I am using Xubuntu 10.10. When the CPU Monitor applet is clicked, it fails to open GNOME's system monitor (since the package isn't installed) and instead opens http://www.gnome-system-monitor.com/ (which doesn't exist) in a new browser tab. I imagine "gnome-system-monitor" somehow got handed off to my browser as a last-resort launcher, and it wrapped it in www.com attempting to turn it into a URL.

Docky debug output from launching "docky -d" and then clicking the applet icon:

[Info 09:31:46.268] Docky version: 2.0.7 Release
[Info 09:31:46.273] Kernel version: 2.6.35.22
[Info 09:31:46.274] CLR version: 2.0.50727.1433
[Debug 09:31:46.502] [UserArgs] BufferTime = 10
[Debug 09:31:46.502] [UserArgs] MaxSize = 2147483647
[Debug 09:31:46.502] [UserArgs] NetbookMode = False
[Debug 09:31:46.502] [UserArgs] NoPollCursor = False
[Debug 09:31:46.580] [PluginManager] Plugin manager initialized.
[Info 09:31:46.582] [DockController] Setting theme: Classic
[Info 09:31:46.743] [PluginManager] Loaded "CPU Monitor".
[Info 09:31:48.478] [HelperService] Helper added: /usr/share/docky/helpers/banshee_control.py
[Info 09:31:48.479] [HelperService] Helper added: /usr/share/docky/helpers/deluge_badge.py
[Info 09:31:48.479] [HelperService] Helper added: /usr/share/docky/helpers/gajim_badge.py
[Info 09:31:48.479] [HelperService] Helper added: /usr/share/docky/helpers/gtg_menus.py
[Info 09:31:48.479] [HelperService] Helper added: /usr/share/docky/helpers/liferea_badge.py
[Info 09:31:48.479] [HelperService] Helper added: /usr/share/docky/helpers/open_terminal_here.py
[Info 09:31:48.479] [HelperService] Helper added: /usr/share/docky/helpers/pidgin_control.py
[Info 09:31:48.479] [HelperService] Helper added: /usr/share/docky/helpers/rhythmbox_control.py
[Info 09:31:48.479] [HelperService] Helper added: /usr/share/docky/helpers/tomboy_menus.py
[Info 09:31:48.479] [HelperService] Helper added: /usr/share/docky/helpers/zeitgeist_docky.py
[Info 09:31:48.479] [HelperService] Helper added: /usr/share/docky/helpers/zeitgeist_journal.py
[Info 09:31:48.488] [DrawingService] Could not find 'banshee', using fallback of 'extension'.
[Info 09:31:48.493] [DrawingService] Could not find 'deluge', using fallback of 'extension'.
[Info 09:31:48.498] [DrawingService] Could not find 'gajim', using fallback of 'extension'.
[Info 09:31:48.502] [DrawingService] Could not find 'gtg', using fallback of 'extension'.
[Info 09:31:48.507] [DrawingService] Could not find 'liferea', using fallback of 'extension'.
[Info 09:31:48.520] [DrawingService] Could not find 'rhythmbox', using fallback of 'extension'.
[Info 09:31:48.526] [DrawingService] Could not find 'tomboy', using fallback of 'extension'.
[Debug 09:31:51.348] [SystemService] Calling: 'gnome-system-monitor'
Error: Failed to send command: 500 command not parseable