RealTek AC97 Sound Card (Chip)

This problem on-board sound chip seems to cause MC users a lot of problems. In my spare time I'm going to try to find out more about why it is usually so bad.

Those who have the AC97 may not know that RealTek has released new drivers. I doubt they will solve anyones problems; however, when in doubt install a new driver [was that Bill Gates or Bill Shakespeare who said that?]
RealTek Drivers