Not really. You didn't provide any useful details.

>
>To be more specific for at least one basic case,
>
>If I connect to a second database in SQL 2005 it works fine
>If I do the same in SQL 2008 R2 I get the following message:
>Error 0:
>Connectivity Error [Mocrosoft][ODBC driver Manager] Data Source Name not found and no default driver specified.
>
>Hope this clarifies a bit.
>
>Rich Balluff