No sound on my Toshiba Tecra 9000 notebook. I want to try all config settings, etc before attempting hardware changes, etc. I am not sure when it actually stopped working but have tried numerous drivers, generic plus downloaded from Toshibas website (win 2000). When installing usually errors with unable to load driver. I have also since blown away hard drive and installed windows xp - Ver 2002 sp 2, downloaded drives from Toshibas website, with the same results. The sound section under control panel shows 'No Audio Device'& under Computer Management > System Devices > System Speakers shows 'device enabled' but "No drivers are installed for this device" is under 'Device Status'