Are you using a non-ubuntu packaged gtk-theme (e.g. from gnome-look.org) or the Crux-theme? If so, please change the theme to e.g. clearlooks or human and try to reproduce the bug. There is a known issue with openoffice.org and broken gtk-themes.
Are you using a non-ubuntu packaged gtk-theme (e.g. from gnome-look.org) or the Crux-theme? If so, please change the theme to e.g. clearlooks or human and try to reproduce the bug. There is a known issue with openoffice.org and broken gtk-themes.