mousetrap software will not open/closes immediately after opening

[John]

Binary package hint: mousetrap

When the software is loaded, it closes as soon as the webcam is ready.
Below is the terminal output of the program.

john@john-laptop:~$ mousetrap
Xlib.protocol.request.QueryExtension
DEBUG: mousetrap.ocvfw.idm -> Starting Forehead idm
INFO: mousetrap.ocvfw.idm -> Forhead Algorithm loaded
DEBUG: mousetrap.ocvfw.idm -> Setting Capture
DEBUG: Commons -> New Singleton Add (mousetrap.ocvfw.dev.camera.Camera)
DEBUG: ocvfw -> cmStartCamera: Camera Started
DEBUG: Camera -> Loaded backend OcvfwPython
DEBUG: OcvfwBase -> Changed lk_swap value to True
INFO: mousetrap - Idm loaded and started
DEBUG: ui.main - Interface Built
DEBUG: addon.recalc - Recalc Addon started
DEBUG: addon.cpu - CPU addon started
DEBUG: addon.cpu - CPU addon started
DEBUG: ui.main - Addons loaded
INFO: mousetrap - MouseTrap's Interface Built and Loaded
select timeout
DEBUG: ocvfw -> cmGetHaarPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarROIPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarROIPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarROIPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarROIPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarROIPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarROIPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarROIPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarROIPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarROIPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarROIPoints: detected some matches
/usr/bin/mousetrap: line 139: 7279 Segmentation fault /usr/bin/python2.6 -c "import mousetrap.app.main as mousetrap; mousetrap.Controller().start();" "$ARGS"
john@john-laptop:~$ mousetrap
Xlib.protocol.request.QueryExtension
DEBUG: mousetrap.ocvfw.idm -> Starting Forehead idm
INFO: mousetrap.ocvfw.idm -> Forhead Algorithm loaded
DEBUG: mousetrap.ocvfw.idm -> Setting Capture
DEBUG: Commons -> New Singleton Add (mousetrap.ocvfw.dev.camera.Camera)
DEBUG: ocvfw -> cmStartCamera: Camera Started
DEBUG: Camera -> Loaded backend OcvfwPython
DEBUG: OcvfwBase -> Changed lk_swap value to True
INFO: mousetrap - Idm loaded and started
DEBUG: ui.main - Interface Built
DEBUG: addon.recalc - Recalc Addon started
DEBUG: addon.cpu - CPU addon started
DEBUG: addon.cpu - CPU addon started
DEBUG: ui.main - Addons loaded
INFO: mousetrap - MouseTrap's Interface Built and Loaded
select timeout
DEBUG: ocvfw -> cmGetHaarPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarROIPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarROIPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarROIPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarROIPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarROIPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarROIPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarROIPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarROIPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarROIPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarROIPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarROIPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarROIPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarROIPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarROIPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarROIPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarROIPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarROIPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarPoints: detected some matches
DEBUG: ocvfw -> cmGetHaarROIPoints: detected some matches
/usr/bin/mousetrap: line 139: 7321 Segmentation fault /usr/bin/python2.6 -c "import mousetrap.app.main as mousetrap; mousetrap.Controller().start();" "$ARGS"
john@john-laptop:~$

Using Ubuntu 10.10
Mousetrap version 0.4-1
I expect the program to show my webcam image and then work out where my forehead is.
Instead it shows no camera view and exits after a few moments.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: mousetrap (not installed)
ProcVersionSignature: Ubuntu 2.6.35-24.42-generic 2.6.35.8
Uname: Linux 2.6.35-24-generic i686
NonfreeKernelModules: fglrx
Architecture: i386
Date: Fri Dec 31 20:44:52 2010
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
ProcEnviron:
 LANG=en_GB.utf8
 SHELL=/bin/bash
SourcePackage: mousetrap