Traceback (most recent call last):
  File "/usr/bin/jockey-gtk", line 281, in on_handler_changed
    if self.toggle_handler(self.model[path][0]):
  File "/usr/lib/python2.5/site-packages/jockey/ui.py", line 512, in toggle_handler
    handler_id, not en)
  File "/usr/lib/python2.5/site-packages/jockey/backend.py", line 103, in polkit_auth_wrapper
    return fn(*args, **kwargs)
  File "/usr/lib/python2.5/site-packages/jockey/backend.py", line 87, in dbus_sync_call_signal_wrapper
    raise _h_exception_exc
DBusException: org.freedesktop.DBus.Python.apt.cache.FetchFailedException: Traceback (most recent call last):
  File "/var/lib/python-support/python2.5/dbus/service.py", line 696, in _message_cb
    retval = candidate_method(self, *args, **keywords)
  File "/usr/lib/python2.5/site-packages/jockey/backend.py", line 253, in set_enabled
    return h.enable()
  File "/usr/lib/python2.5/site-packages/jockey/xorg_driver.py", line 110, in enable
    KernelModuleHandler.enable(self)
  File "/usr/lib/python2.5/site-packages/jockey/handlers.py", line 428, in enable
    Handler.enable(self)
  File "/usr/lib/python2.5/site-packages/jockey/handlers.py", line 213, in enable
    self.backend.install_package(self.package)
  File "/usr/lib/python2.5/site-packages/jockey/backend.py", line 462, in install_package
    hasattr(self, '_locations') and self.install_progress or None)
  File "/usr/lib/python2.5/site-packages/jockey/oslib.py", line 211, in install_package
    progress_cb and MyInstallProgress(progress_cb) or None)
  File "/usr/lib/python2.5/site-packages/apt/cache.py", line 223, in commit
    res = self._fetchArchives(fetcher, pm)
  File "/usr/lib/python2.5/site-packages/apt/cache.py", line 181, in _fetchArchives
    return self._runFetcher(fetcher)
  File "/usr/lib/python2.5/site-packages/apt/cache.py", line 163, in _runFetcher
    raise FetchFailedException, errMsg
FetchFailedException: Failed to fetch http://archive.hostname.com/hostname/pool/restricted/n/nvidia-graphics-drivers-177/nvidia-177-kernel-source_177.70-0hostname1_i386.deb 404 Not Found [IP: 91.189.88.46 80]
Failed to fetch http://archive.hostname.com/hostname/pool/restricted/n/nvidia-graphics-drivers-177/nvidia-glx-177_177.70-0hostname1_i386.deb 404 Not Found [IP: 91.189.88.46 80]