Well, my dad's office has these cheap book pc's. They are about a year old and all are starting to have problems. One has a dead networking card, but since it is integrated, i cannot take it out and replace it, and since it is a book pc, i cannot add a NIC, I know there are some usb networking units out there, but don't know about them myself, having never actually used one. Do you guys have any suggestions on them? oh another thing, it cannot be for wireless, since my dad's office is all wired and are too cheap to get any more then they HAVE to...