KM Document iView error

Hi,

I created one km document iView. I can see the uploaded document in the portal.But in the preview of the iView the uploaded document not displaying.I am getting the error like 404

The requested resource is not available.

I given the path of the document like

E:\ Name of the document.

Is it right way to give the path of the document?

Can someone help me for the above issue?

Thanks,

Kundan