I have an xbox 360 and a laptop running windows vista home premium and a wifi connection. I am trying to avoid paying 100 dollars for the wireless adapter for the 360 and I know that you are able to use your laptop connection and ethernet port to share internet with your 360. My problem is that when I enable internet sharing on my laptop it seems to severly limit my wifi internet connection. So in essence I get connected to teh 360 but I lose my internet connection so it does me no good. I have tried using both a crossover cable and a regular ethernet cable but its no use. Any ideas or suggestion?