I bought a new Canon Pixma MX850 yesterday and am in the process of trying to set up printer sharing just the way it worked before with an Epson printer. The printer is connected to a Windows XP machine via usb and print sharing is enabled. I have no problem with the Windows laptop in my son's room via wireless. However, in trying to use the printer from my daughter's macbook via wireless I am running into a driver issue. The macbook can see the printer but when it comes to choosing printer / driver from the drop down list the MX850 is not listed. I installed the drivers from the cd and that didn't help. I then went to Canon's website and grabbed what should be a more recent driver for OSX 10.5 and installed that as well. The printer is still not shown on the drop down list. Is there some little trick to circumvent this issue? I know that this printer can be plugged into the router via ethernet but because of placement it's a bit of a challenge to say the least. I would prefer to be able to do this wireless if anyone can suggest a tip. Thank you very much.