Hi everyone

when I start a 32 bit program on Debian squeeze (64bit), I get the following message:

Code:
Gtk-Message: Failed to load module "canberra-gtk-module": libcanberra-gtk-module.so: cannot open shared object file: No such file or directory
but I have installed the ia32-libs-gtk package

Code:
# aptitude search  ia32-libs-gtk
i   ia32-libs-gtk                   - GTK+ ia32 shared libraries
I do not know what to do to fix it.
I hope some kind of suggestion
Thanks in advance.