Well i'm using Debian Lenny/Sid and i'm having some problems in Gnome.
I can't edit my menus in my bar via right click>Edit Menus, i just click the option and nothing happens, this also happens when i try to edit my compiz preferences via Sistem>Preferences>Compiz settings manager. Anyone has some info on this? Maybe how to fix it?

Thanks

Is alacarte installed? If so, then it may be a bug. I remember having a similar issue when Mandriva Spring was still in beta.

Try opening a terminal and running

Start|System|Preferences|Main Menu

I have the same problem.
This was working before we upgraded some libraries for sane called libsane to fix a scanner problem

If I open alacarte from a terminal here is what I get:
alacarte
Traceback (most recent call last):
File "/usr/bin/alacarte", line 37, in <module>
main()
File "/usr/bin/alacarte", line 33, in main
app = MainWindow(datadir, version, sys.argv)
File "/usr/share/alacarte/Alacarte/MainWindow.py", line 49, in __init__
self.editor = MenuEditor()
File "/usr/share/alacarte/Alacarte/MenuEditor.py", line 36, in __init__
self.__loadMenus()
File "/usr/share/alacarte/Alacarte/MenuEditor.py", line 56, in __loadMenus
self.settings.path = os.path.join(util.getUserMenuPath(), self.settings.tree.get_menu_file())
File "/usr/lib/python2.6/posixpath.py", line 65, in join
if b.startswith('/'):
AttributeError: 'NoneType' object has no attribute 'startswith'

Obviously Debian are giving you a bad Alacarte. File a bug report and get an older one out the stable repository, or get it direct from Gnome.