We have come across an old Latitude D600. We installed XP and can't get any wireless activity. The F2 button has a wireless symbol, but nothing seems to happen when I press Fn-F2. I know the F2 button functions. We do not have the original installation disk. What can I try? Do I need a driver of some sort? If so, can you tell me how? I downloaded a driver from Dell that seemed like it might be correct. When I clicked on the .exe, it tried to create a new folder, but couldn't. Probably a permissions problem. Thanks.