After restarting your computer, you will need to reinstall the correct drivers. Go to http://www.brother.com/E-ftp/softwin.html to locate the driver for your unit. On this page, select the appropriate region located next to "Multifunction Machines". Then, select your model under FAX machines, Color Multifunction Machines or Monochrome (black and white) Multifunction Machines. You will then be brought to the download page for your model.