5/2/2010: I just got a new Laptop with Windows 7 Pro 64 bit. Was able to easily configure the laptop's WiFi to connect to my home network "N" with DHCP. Carried it the next day to my store where I am required to use a fixed IP address for the store's WiFi network named "S". It was a bear to find the TCP/IP address settings panel so I could turn off DHCP and put in my fixed address, netmask, etc., but once I did, all worked fine. Windows even remembered that I had two different default networks: N and S.But here's the problem. When I went home again, and selected the N network, Windows tried to use the fixed IP address from the S network. I couldn't find any "remember this setting for this network only" button. So does them mean I have to repeatedly change the IP settings every time I go to and from the store and home? If "yes", this is so 1990's!Surely Windows 7 has something to solve this, as my eight year old Mac Laptop with OSX has a pulldown menu called "Location" that instantly reconfigures the IP settings back and forth to solve this problem. I think I'm just missing doing something similar with my Windows setup.If I need to get a freeware or shareware utility that does this, I'm game.Thanks.