[rcase13]

I have the same problem using my 6910P HP laptop. Did you ever get this fixed?

 

[jean]

look into the choice of device. I have a trace pro soundcard which is the default device, but i have to select it instead of default device. Not sure of that for you, but try it anyways, it seems like REW doesn't see the card.

 

[hanggaw]

Yup, I have tried all of the devices available in the pull-down menu. Still not working. I tried the software with Windows 7 just in case it might help. Nope. The only work-around left is to get an external soundcard.

 

[jel]

I've just had a similar problem, with hours of head scratching.

It finally dawned on me what I had done wrong.

I had cabled it up to use the left channel as a reference, but unchecked the box so i could try to get a soundcard calibration.
I eventually realised I needed to select the left channel in the input channel section, in addition to all the other suggestions mentioned above.