I have an Airport Extreme at home that's set up with a wireless network. My G4 iBook and the two iPhones in this house (one 2G, one 3G) all connect to this network beautifully, and fast. However, my G5 PowerPC's connection is really spotty. It drops its connection to my Airport's wireless network quite often, and when it IS connected it's usually very weak. Browsing the internet or doing anything that needs an internet connection has become a really frustrating experience on my G5. So is this a computer problem, an Airport Card problem, or what? I want to find out what the deal is and fix it ASAP, but don't really know what to do. Any suggestions?