On start up I get this message:
Support for cores revision ox17 and ox18 disabled by module param allsupport=0. Try b43.allhwsupport=1
I found an answer which stated I needed to create the file /etc/modprobe.d/local-b43.conf
I don't know how to do this. At the moment it will boot the system without the Network Manager which I can then manually switch on by typing:
gksu service network-manager start