For some reason yesterday, my CPU started popping up a message in the lower right task bar by the volume controls... It's a yellow triangle "Windows system Error", with an excamation point in it. The error says. "There is an IP conflict with another system on this Netwrok" I am running a Wireless Router, my main system has only one wired connection. My brother in the same houshold is using a Wireless card to get into my network, but he is on only once a day... I also have a wired connection running into my XBOX, but it hasn't been in use while since this error started popping up?? Any ideas on how I can fix this, and what it is??