I visit my Aunt's on a semi-regular basis. She has a 2Ghz Intel Core 2 Duo iMac which is online via a Qwest ActionTec GT701-WG DSL Modem. I have a new MBP (sig) and I've tried to activate the ActionTec Modem's wireless. My MBP sees the network but when I log on to it, instead of the bars I usually see, instead there is an exclamation point. This happens whether I have it set for WEP or WPA and on my MBP I get a self assigned IP address and can't get online. The last ditch was to unplug the ethernet cable from the back of the iMac and plug it into my MBP but my MBP still ends up with a self generated IP address. Now I'm starting to think there is some difference between my MBP and this iMac, which I'm not seeing. If I look at the network screen on the iMac it has a configure box with choices like "Use DHCP, DHCP with manual address, Using BootP, and Manually". The iMac is set to "Use DHCP". When I look at the network prefs on my MBP it says Configure iPv4 with the same choices. Any thoughts on what the missing link might be? Is iPv4 the issue? Thanks!