Hey everybody. Haven't been here in awhile, and thought I'd get some help from the pro's. Here goes: Here's my setup: G3 ibook w/ original Airport card My PowerMac w/ a direct line to my Linksys wireless router. 1) Can I create a wireless network for both computers? I mean, can I send files back and forth, etc.? 2) My airport card is acting screwy lately (I posted about this awhile ago---but I got no answers then, and it's getting worse). It goes in and out. My roomate has a Dell with a wireless card in it, and has no problems with his connection. My card does not work regularly in other places (my parents house/ coffee shop). Is my Airport card just old? I've had it for almost three years now. Do I need to get a new one? 3) If I get a new one, does it have to be the old Airport card, or the Extreme one? 4) This one involves security, and I guess kinda ties into #1. What do I do to make this thing secure? Even if I can't do the network thing, how can I make my basic wireless network secure from people stealing my internet? Thanks all. I appreciate it.