I'm helping a friend reconnect her laptop to her wireless network. Ironically, I brought my laptop to her house, and without any effort, I was able to connect to her network. However, when I attempt to do the same thing on her laptop, the repair wizard gets stuck at 'Renewing your IP address' and a 'Windows - System Error' bubble appears in the bottom right of the screen, indicating that 'There is an IP address conflict with another system on the network'. I haven't encountered anything like this before. I've tried disabling the wireless network adapter, then enabling it again, but to no avail. Any ideas?