Well I have a HP Pavilion and I want to get a Mac to replace my secondary computer but my question is if I've got wireless network set up just say the router and the network accounts and I share the internet with the mac with 10.1 and an Airport Card. But the Verizon Takes 10.4 on Mac but I can install it on a PC but can I use that internet on a Notebook on a network without 10.1 with out software ?