[Libvir] Problem using libvirtd on RHEL5.1

Hello 8-) I'm using libvirt-0.4.0-1 (re)compiled from libvirt-0.4.0.tar.gz, on Red Hat EL 5.1 x86_64. The problem is: # /etc/init.d/libvirtd start Starting libvirtd daemon: libvir: QEMU error : cannot create bridge 'virbr0' : File exists Failed to autostart network 'default': cannot create bridge[FAILED]' : File exists And I can't destroy the 'virbr0', because I don't know how :^) --- I've tried do compile the libvirt-cvs-snapshot.tar.gz, but I can't too :( In file included from libvirt.c:36: util.h:28:22: error: util-lib.h: No such file or directory RPM build errors: File not found: /var/tmp/libvirt-0.4.0-root/usr/libexec/libvirt_parthelper Maybe you have some tip/ trick for me :) Many thanks -- Tiago Cruz http://everlinux.com Linux User #282636