After successfully installing DNN 4.0.3, there is an error at the top of all the modules.
VS2005, DotNetNuke 4.0.3, SQL 2005

With out going and downloading all the source code for the default modules (Which is wierd in its own way when I downloaded the Source Package of DNN 4.0.3 and the source for the modules is not inluded.), where the problem be? I have logged on to the site and it works fine except the Errors.

Error: Documents is currently unavailable.
DotNetNuke.Services.Exceptions.ModuleLoadException: Value cannot be null. Parameter name: connectionString ---> System.ArgumentNullException: Value cannot be null. Parameter name: connectionString at Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteReader(String connectionString, String spName, Object[] parameterValues) at DotNetNuke.Modules.Documents.SqlDataProvider.GetDocuments(Int32 ModuleId, Int32 PortalId) at DotNetNuke.Modules.Documents.DocumentController.GetDocuments(Int32 ModuleId, Int32 PortalId) at DotNetNuke.Modules.Documents.Document.Page_Load(Object sender, EventArgs e) --- End of inner exception stack trace ---