Hi. I have a laptop which is the only computer I use. I get internet via unsecured wireless connection from my friend who lives next to my house. It's been working just fine over months. But about a week ago I started to get error: "There is ip address conflict with another system on the network". As I mentioned I don't have any routers. I tried to renew ip address via ipconfig, reinstalled drivers for all network cards, and finally decided to reinstall windows. I erased all info and formatted all drives. In the middle of windows installation I got exactly the same message. It finished installing, and needles to say I have the same issue. Tried to connect from another laptop - worked just fine. Please help!