I have an IBM T40. ( type: 2372-72u) . I just reinstalled win xp pro sp2 . After installing all of the devices, when I go to device maneger there is and Unknown device. I have no idea what that is. I went to IBM's website to see if they have any chipset drives that I have to download , but I did not see any under the downloads. I am sure if it's a chipset. I just don't know what it is. ?