I am pulling my hair out trying to get my T250 to share wirelessly with my Powerbook. A friend of mine has an HP laptop with XP Home edition, and her laptop connects instantly. I think it may be the Sony software mixed with XP Pro. I click on repair but it gives me something about an incorrect IP address. THe odd part is that it used to work when I first got the T250. Even after re-installing Windows it does not work.