a?a) Install the most recent version of the sound card's driver from the manufacturer's web site.
a) Install the most recent version of the sound card's driver from the manufacturer's web site.
b) Replace the sound card with one that is known to work.
c) Replace the motherboard with one that has integrated audio.
d) Instruct the customer to use headphones instead of speakers.
a?a) Install the most recent version of the sound card's driver from the manufacturer's web site.