I am posting on behalf of my poor, beleaguered girlfriend. We both arrived at college about two weeks ago, and the first thing we did (naturally!) was have the school's hidden, encrypted wireless network setup on our macs. In the intervening time my iBook has worked flawlessly, even getting reception in places it, by all logic, shouldn't. Her PowerBook (15" 1.67 running 10.4.2 with all software updates) on the other hand constantly "loses" the uni's network. She's gone back to the tech support offices so many times they finally just wrote down the WEP for her (not supposed to do that). You can enter the information into AirPort, it will work just fine, but eventually will no longer detect the campus network. Usually it happens after putting the computer to sleep and waking it back up. I/we have tried everything I/we can think of. I have entered it as a new location separate from "Automatic," made it a preferred network, made it the only preferred network, but nothing seems to work. I've reached the point of hopelessness, so I must defer to this wonderful community. Does ANYONE have ANY ideas?