try plugging/unplugging/rotating speaker jack where it enters back of computer & also at speaker end (if so equipped).
I thought my speakers were burned out or drivers bad but it was just accumulated dirt in the plug/receptacle interface which had never even been touched since set-up.
Worth a try?? Good luck.
i have a year old toshiba satellite m40 which has is a intel pentium m 1.73Ghz, 1Gb Ram, 100Gb hard. i decided to upgrade its operating system from xp to vista. everything works fine except for sound! so i decided to download the sound driver from the manufater website and install it using the compatibility feature available in vista. after installation the sound works HOWEVER it lags pretty bad and it keeps breakingup. the sound is really terrible and u cant really hear anything. i also tried installing the realtek ac'97 driver for vista but no point. sound works but very bad quality. does any1 know why my sound lags and breaks up? is this a driver problem?