Broadcom b43 driver again: Why modprobe b43 manually?
Solution 1:
The pci.id for Broadcom cards sometimes but not always matches the model number; only Broadcom knows why. It is not significant to your problem.
Get the module to load automatically on boot with:
sudo -i
echo b43 >> /etc/modules
exit
You should be all set.
If you find you have a conflicting blacklist, please do:
gksudo gedit /etc/modprobe.d/blacklist.conf
Remove the line 'blacklist b43' save and close gedit.