[libvirt] libvirt -0.7.4 on fc8 gives "Starting libvirtd daemon: error: Unable to initialize network sockets"

Hi, I'm trying to use the libvirt 0.7.4 in fc8. I have configured and done with make, make install. Virsh command also displays the version correctly as 0.7.4 But when I try to start the libvirtd service, I get the following error. "Starting libvirtd daemon: error: Unable to initialize network sockets [Failed]" My machine details is given below "2.6.21-2950.fc8xen #1 SMP Tue Oct 23 12:24:34 EDT 2007 i686 i686 i386 GNU/Linux" Have anybody encountered the same kind of error? Please help me on this. Thanks, Nimal.I