Linux used to have major sound issues in the past. It is often a default setting that doesn't work with you system.
If it is a problem just open the sound manager and play with the settings a bit. If that don't work go to the ubuntu forum. It is very good for specific problems. Just put in your hardware spec AC97 whatever it is and a answer will appear.
If it is a problem just open the sound manager and play with the settings a bit. If that don't work go to the ubuntu forum. It is very good for specific problems. Just put in your hardware spec AC97 whatever it is and a answer will appear.