I have a g3 imac with an airport card in it. While the imac is awake and being used everything works beautifully, but when the hard drive goes to sleep the airport card disconnects itself from the network. Upon wake it quickly reconnects on its own. If it were any other computer I wouldn't see this as a problem, but this particular imac is serving a shared itunes library and a printer and I have to go wake it up every time I want to access it over the network. When I had it set up on the ethernet, it would just wake up automatically if it needed to be accessed while sleeping. So I'm wondering, is this some attribute of airport that I'm not aware of? Is it a setting that can be changed that I haven't found? Is something bunk? Any insight would be greatly appreciated.