[libvirt] qemu error: package not installed

I get the following error on Ubuntu 8.04 when tryint to install the libvirt-bin package: Setting up libvirt-bin (0.4.0-2ubuntu8.1) ... * Starting libvirt management daemon libvirtd libvir: QEMU error : cannot create bridge 'vnet%d' : Package not installed Failed to autostart network 'default': cannot create bridge 'vnet%d' : Package not installed Can anyone advise which package I need to install? thanks Nigel -- ============================================ Nigel Goddard Axiope Limited ngoddard(a)axiope.com Tel: +44 787 967 1811 http://www.axiope.com Fax: +44 871 251 4870 -------------------------------------------- Registered in Scotland. Registered address: Quartermile One, 15 Lauriston Place Edinburgh EH3 9EP, United Kingdom ============================================