AWN-manager won't open

I'm running awn and awn manager on a fresh installed ubuntu 9.10. I got awn manager to run only one time after installation, then it won't open anymore, it just fails silently. if I try to run it by terminal I get this message:
cry@cry-laptop:~$ awn-manager
Traceback (most recent call last):
  File "/usr/bin/awn-manager", line 220, in <module>
    awnmanager = AwnManager()
  File "/usr/bin/awn-manager", line 136, in __init__
    self.prefManager = awnPreferences(self.wTree)
  File "/usr/share/avant-window-navigator/awn-manager/awnPreferences.py", line 109, in __init__
    self.setup_look(defs.BAR, defs.BAR_ANGLE, self.wTree.get_widget("look"))
  File "/usr/share/avant-window-navigator/awn-manager/awnPreferences.py", line 363, in setup_look
    self.changed_look(dropdown)
  File "/usr/share/avant-window-navigator/awn-manager/awnPreferences.py", line 377, in changed_look
    self.reload_look(0, dropdown)
  File "/usr/share/avant-window-navigator/awn-manager/awnPreferences.py", line 368, in reload_look
    if self.client.get_int(defs.BAR, defs.BAR_ANGLE) == 0:
glib.GError: Type mismatch: Expected `int' got `float' for key /apps/avant-window-navigator/bar/bar_angle
how can i fix this?
I've tried to install everything once again and it won't work, even if I cancelled every file awn-related.
Also now I have the little arrow under the lunchers when the programs are closed, that's really annoying.