probehla nejaka zmena - instalace OS ? Jak stary je ten NTB ? Predtim to fungovalo ?
EDIT
muzes sem dat screen ze http://windows.microsoft.com/cs-CZ/windows-vista/O pen-Device-Manager ?
Proved ipconfig na funkcnim PC a na tvem notebooku, screeny dej do poradny
http://it.cestuji.info/ipconfig_-all.php