Problems with KDE and usb drive automounting

[Fabio Comolli]

Hi.
I'm faceing a strange issue. I have two laptops, one running FC4 and
the other running latest rawhide. Both run KDE 3.5.1

The second one doesn't automount pendrives or usb external drives,
whilst the laptop running FC4 works perfectly.

I debugged udev and it seems it's not its fault: device nodes are
created correctly; however the /media directory is always empty. HAL
is installed and running.

Can anyone help me?
Thanks,
Fabio