Created Unassigned: ProtocolException in SharePoint List Source [20984]

Hi,

I am trying the import ( and export too) data from a SharePoint Custom list. My site is running on Windows SharePoint Services 3.0 with SQL Server 2008. This site is using __Form authentication__ for security and all the content of this site is protected.

I have added the SharePoint List Source on my Data Source Task. Created a connection manager (using SPCRED) and passed the user credentials which I am using to access this list online after login into the system. In Component Properties tab I added the SiteURL and SiteListName accordingly. But after this when I am going to "Column Mapping" tab there is no column and getting following error:

> error in data flow task [SharePoint List Source [24]]: System.ServiceModel.ProtocolException: the content type text/html; charset=utf-8 of the reply message does not corresponding to binding content type (text/html; charset=utf-8). If using a custom encoder, be sure that the IsContentTypeSupported method is implemented properly. The.......................................................................

I tried to change the user multiple user credentials but no success. Please help me resolve this issue.