Sound is echoing like mad....

[too_much]

Hi, I have onboard 6 channel sound, but just run normal headphones thru it.
MY sound is always fine, no worries, but today for some reason, its REALLY echoey, like a church, and has lots of background echoing when the track stops. What might be causing this?
Thanks, Matt.

[AllGamer]

check your Volume control

and see if you accidentally enabled the Echo or 3D sound option

also check your Direct X, reinstall direct x 9.0

www.microsoft.com/directx

[NDD]

Is it a CD or MP3 file ? You might have installed some DSP plugin for your player.
And the above