If you're experiencing problems with sound in Yahoo! Games such as:
a likely cause is old or low quality sound cards and/or device drivers. If you're technologically savvy, it shouldn't be too much trouble to locate updated sound card drivers and install them. Otherwise, you may want to contact the manufacturer of your computer or the sound card manufacturer to see if updated drivers are available, and if so, how to install them.
If you're unable or unwilling to go through the trouble of updating your sound drivers, there are several steps you can take to circumvent the problem.