hey guys i am having a grave problem in my pc. there is no sound/audio coming in WINDOWS XP. this has been for quite few days. no problems in sound in WINDOWS 98(just tested).then it must be a codec problem. i ran 'sherlock' and it showed vorbis decoder and vorbis encoder errors for audio codes. searched all over net and downloaded some related codecs but nothing worked. the error still persists and there is no sound coming either what to so? how to solve? i don't want to install any codec packs. please help!