Encoding issue with Ado.net Data Services

Hey im trying to retrieve some data from a database with ADO.Net Data Services.

And i get this exception:

Character set 'iso-8859-1' is not supported.

Here is the code im retrieving it with:

<code>
DataServiceQuery<product_type> productTypeQuery = (DataServiceQuery<product_type>)result.AsyncState;
List<product_type ...