I just recently started having a problem (more of an annoying thing) is that when at home the iBook keeps requesting an IP that is in use. I have my home network set up so that my iMac and the PC in the house have set (fix) IP addresses right after one another (for torrent purposes). Anyway, after visiting a friends house the iBook, when set to DHCP, always wants 192.168.2.101 as the IP. That is used by the PC in the house and I can't figure out why the iBook is doing it. I have restarted the machine, reset NVRAM and PRAM, repaired permissions, and most of the other things that are "mandatory" in a situation like this. The only thing i have not done is a restart of the router which i will do when i get home from classes today. On a side note. Is there a way to get the computer to automatically set an IP address for a given network?? I would love for it to work as follows. When on campus and the network "osuwireless" (or basically any network that is not my home one) is present the computer defaults to DHCP and obtains everything on its own. When at home i would love for it see my home wireless network adn then default to using DHCP with manual address. I realize there is the locations thing that can be setup but that is not better then what I am doing now. I am going into system preferences every time to switch between DHCP (when away from home)and DHCP with manual address(when at home).