notify-send fails to specify a destination, and my notification doesn't appear onscreen. Why?

Notification through libnotify seems to work under icewm, as the different notifications from applications like konversation show. But I can't get it to work from the command line using the notify-send command. When I try it, the notification doesn't appear on my screen at all. How can I get it to work under icewm? **Edit 1:** I've now tried dbus-monitor. It seems there's a problem with notify-send: it isn't specifying any destination, whereas konversation for example specifies knotify as destination. Maybe this is what's causing the problem? **Edit 2:** I've also tried d-feet to reproduce the query :(see http://dropcanvas.com/521xc/97) , still nothing. The query I tried to reproduce was this one:

method call sender=:1.14 -> dest=org.kde.knotify serial=1024 path=/Notify; interface=org.kde.KNotify; member=event  
   string "queryMessage"  
   string "konversation"  
   array [  
   ]  
   string ""  
   string " hello"  
   array [  
   ]  
   array [  
   ]  
   int32 -1  
   int64 33554870  
method return sender=:1.8 -> dest=:1.14 reply_serial=1024  
   int32 1072

It was captured using dbus-monitor, sent from konversation when receiving a PM from myself to myself (using xchat, konversation and two nicks).