I had Snow Leopard installed as an upgrade on my Macbook and my printer worked fine. I had to do a fresh install of Snow Leopard because I was having some other issues with it, and now they are gone but my printer won't work. I have a Lexmark Z2400 set up to print via wifi. But it just won't print and everytime I try to print is saids that its installed incorrectly, but I have done the install several times before the same way and before I did the SL install everything worked fine. Could it be a driver Problem?? Curious to know if anyone else has had something like this happen to them, and if so what can I do to make it work. Thanks again for all your help in advance.