503 service unavailable in WEDAV repository

Hi friends,

I have configured WEBDAV repository manager but in the component monitor its showing the following error msg :

2007-05-23T13:53:19Z: PROPFIND /KMWebDAV/: 503 Service Unavailable

Can anybody tell me what could be the problem. where and how to activate this service?

Thanks in advance.

Regards

Sireesha.