Constant echo.....

[zorch15]

I have just installed the demo version of OTSAV, and have a problem I cannot seem to sort. 
There seems to  be a constant echo on the output, even though I have tried all the different presets in the Dynamics Processor.
I am running XP Pro on my PC, and Vista on my laptop. (I installed on both to see if I could eliminate the problem)

Can anybody please tell me how/where I'm "missing the point"?   

Thanks,

Dave

[milky]

Maybe you have your soundcard set to "What You Hear" so it is playing it twice?

[discodonal.com]

Ensure the microphone is turned off in your computer

[clover-leaf-productions]

Also be sure that you do not have any special affects activated through your sound card controller software.  Many cards offer special simulated spacial environment sound options.  Be sure that these are turned off.