Hi All, I have a question. I am using airport express for my wireless. I have been using it for a long time but still haven't figured out how to use printer wirelessly. Here is what tried. File->Print->Printer->rendezvous printer-> add the printer but then i can't add it cuz it said the driver not found. When I connect it thru USB cable, i can print without any problem. I am sure i have the printer driver installed. So I don't understand what the problem is. My printer is HP Desktop 3840 Could anyone please help me out so that I don't have to buy a new printer to enjoy the wireless printing feature? Thanks a lots.