Thank you both, your info saved me from taking back a bridge I just purchased, that led me to instruction at the Linksys site that told me how to connect a wireless bridge to a mac. Now I have run into instructions I don't understand. It says to choose a default transmit key. Is that just were the ethernet cable is connected to. I noticed the connections on the router are marked 1,2,3,4. Is that all it's asking. Because that is were it says I need to enter the wep key. It has a place for key1,key2,key3,key4. I think thats what it means, but I want to be sure.