Ok here is my story, I think I did something very stupid!, I got a hp 6910 from E**y , it came with windows xp, as soon and I turned it on it detected my router and ask me to connect to it, so everything worked fine, great signal strength, but for some reason I decided to "upgrade" to Vista home premium, but the disk I have is the disk that came with my Gateway computer!, so I installed it anyways, but now I just can't connect to my router, I've tried and tried, but nothing , I go under " connect to a network" and it said that it can't find any networ, so I try to set up one and go under "wireless", but says"Windows did not detect any network hardware". I really don't know what to do!, could somebody please point me in the right direction please !, can I undo the Vista install?, I don't have the XP disk. please anybodyyyy. Thanks.