I uesed a crossover cable to connect my two desktops together and it was a bitch. All I wanted it to do was share files but the first 50 times I ran setup all I could get it to do was to share the internet. Then I formatted one of the computers and now the file sharing works (what I want) and the internet sharing doesn't work anymore. I'm not sure what is up with them but windows doesn't seem to like you using them.