I have added a networked Canon Pixma MP450 printer to my Mac (10.4.10). The printer is hooked up to a Windows XP pc via a USB cable. In the Printer Network Utility I see the Canon no problem and am able to add that as a printer. The problem is choosing the correct driver. When I choose the Beta driver for a product other than the MP450 it prints a blank page. I have read I need a CUPS driver. If so, what is the correct procedure so I can choose the proper driver for the networked printer? Thank you for looking.