kdeprintd cannot start child process

[Nolan Rumble]

Hi,

I'm struggling to get the KDE print menu to work.

I keep getting the following error:
A print error occured. Error message received from system:

Unable to start child print process. The KDE print server (kdeprintd)
could not be contacted. Check that this server is running.

What I've found is that the root user can print without any problems.
Yet when I print through a normal user it gives me the error message
above...

Where is kdeprintd loaded?  How can I change it so that a normal user
can print through the menu.  

Another thing is that we can print fine using the lpr command.  I'm
using kde 3.4.

What can the problem be?  I've googled quite a bit and I can't seem to
find any answers :(  (perhaps I'm not searching for the correct thing?)

Thanks
Nolan