How do i turn GDM sounds on?

[Mark]

> Oke thanx. I will try it on another fedora machine as well and i will
>  post it here if it worked or not.
>
>  Anyone else trying this would be nice.
>

Now i've tested it on another machine and it is a bug indeed.
Some more research is pointing me to 2 existing bug reports [1] for
gdm and [2] for login/logout sounds

So they have been reported already.

[1] https://bugzilla.redhat.com/show_bug.cgi?id=426632
[2] https://bugzilla.redhat.com/show_bug.cgi?id=421841