next door at work, i have an airport extreme base station, hooked up to the internet and a usb printer. at my house, i have an imac g3 running os x 10.4.2, connected to an airport express base station. i followed the setup guide's instructions on setting it all up, so that i can use the internet on my imac, but my imac is unable to connect to the internet, nor even see the base station at work. i put an ibook next to the airport router at work, and it detected my express router, so distance isn't a problem (not that it should have been). can anyone give me some advice as to how to set this up, or what i might have done wrong? thank you so much!