sound problem

hello there,my son has a presario compaq desktop (im not sure of the model number) but he is running xp home on it. he also has 2 children who has become active on the computer. The problem is his sound has an echo to it,and i cant seem to find out how to correct it, it didnt used to do it,we think that maybe the kids did something to it but we dont know what. any help will be appreciated,thanks

Firstly, Welcome to the forum! :thumbs:

What I'm thinking is that it's not the hardware of the computer itself, but whereas the speakers. Is it possible to change speakers to test it out or try headphones?

Welcome to the forum scbanjoman
It may also be because the kids have changed the sound settings. To check this go to:
Start > Control Panel > Sounds And Audio Devices. From here there are multiple tabs and settings you can adjust. Each computer is slightly different depending on what drivers are installed and what audio software is being used. The best advice is to look through the various tabs/settings and find any that say 'Restore Defaults'. One of the tabs should open a page that looks like a graphic equaliser. Check for an echo setting and turn it right down.