abrt 1.0.9 detected a crash.

architecture: x86_64
cmdline: python /usr/share/avant-window-navigator/applets/slickswitcher/slickswitcher.py --uid=1273583792 --window=52654537 --panel-id=1
component: awn-extras-applets
executable: /usr/share/avant-window-navigator/applets/slickswitcher/slickswitcher.py
kernel: 2.6.32.11-99.fc12.x86_64
package: awn-extras-applets-0.4.0-5.fc12
reason: switch.py:60:get_num_columns:AttributeError: 'NoneType' object has no attribute 'get_width'
release: Fedora release 12 (Constantine)

backtrace
-----
switch.py:60:get_num_columns:AttributeError: 'NoneType' object has no attribute 'get_width'

Traceback (most recent call last):
  File "/usr/share/avant-window-navigator/applets/slickswitcher/switch.py", line 51, in emitted
    func()
  File "/usr/share/avant-window-navigator/applets/slickswitcher/drawing.py", line 109, in update
    num_columns = self.switch.get_num_columns()
  File "/usr/share/avant-window-navigator/applets/slickswitcher/switch.py", line 60, in get_num_columns
    workspace_width = current_workspace.get_width()
AttributeError: 'NoneType' object has no attribute 'get_width'

Local variables in innermost frame:
self: <switch.Switch instance at 0x29757e8>
current_workspace: None