I have a Windows XP SP3 Dell Latitude D650 computer with the following audio configuration:
Driver Provider: Sigma Tel;
Driver Date: 11/15/2004;
Diver Version: 220.127.116.1152;
Driver Signer: Microsoft Windows Hardware Compatibility Publisher.
I need to update the driver because I can't control the tone (Bass/Treble, Equalizer). The bass and treble are greyed out. Can you help?