Will Apple Pro Keyboard A1048( http://upload.wikimedia.org/wikipedia/commons/1/1b/Apple_Pro_Keyboard_%2... ) work with Mac OS 9? I know that M7803( http://img233.yfrog.com/img233/5616/20100918024805107715a1.jpg ) works, but it's yellowing, and I want to change it for another white Apple keyboard to match my iMac.