trying to use compiz. Graphics card says i have openGl and support. I am using r300 3rd party driver for atix1200 onboard gfx in my laptop. Evey time click "compiz setings i get an error

[Torrey Braman]

Distribution: Ubuntu 10.10 maverick
Application: Ubuntu Tweak 0.5.10
Desktop: gnome

Traceback (most recent call last):
  File "/usr/lib/python2.6/dist-packages/ubuntutweak/mainwindow.py", line 502, in setup_notebook
    page = module()
  File "/usr/lib/python2.6/dist-packages/ubuntutweak/modules/compiz.py", line 325, in __init__
    self.create_interface()
  File "/usr/lib/python2.6/dist-packages/ubuntutweak/modules/compiz.py", line 347, in create_interface
    self.snap = SnapWindow(_("Enable snapping windows"), self)
  File "/usr/lib/python2.6/dist-packages/ubuntutweak/modules/compiz.py", line 254, in __init__
    self.plugin = CompizPlugin('snap')
  File "/usr/lib/python2.6/dist-packages/ubuntutweak/modules/compiz.py", line 101, in __init__
    self.__plugin = self.context.Plugins[name]
KeyError: 'snap'