open the case and see if you have a sound cable coming from the back of the cd-rom to the motherboard if not that is why the sound doesnt work, through the headphones i only found out the other day when i opened mine to install a dvd-rw
hope this helps
dan

"Barb" wrote:

Dumb question, but how do I hook up a very simple headphone set to my
computer in order to listen to an audio CD without it coming through the
desk speakers? Have tried plugging the jack(?) into the CD-ROM, and have
checked all the sound settings to make sure nothing is muted. The sound
still comes through the desk speakers. Any suggestions?