Since doing nothing (!??) I get an exception when I try to manage forums (v. 4.3.3) on DNN 4.7.0. The error sent to the client is Object reference not set to an instance of an object, and the following is logged in the site log:

I've read and tried out the solution described in the following two posts, but none of them seems to make any difference (and yes, I've emtied the cache and restarted the application).
http://www.dotnetnuke.com/Community/Forums/tabid/795/forumid/7/threadid/197003/scope/posts/Default.aspx
http://www.dotnetnuke.com/Community/Forums/tabid/795/forumid/7/threadid/188589/scope/posts/threadpage/2/Default.aspx

PLEASE HELP! :)

Sorry, I'm not able to execute the script (which I assume may be run from the SQL execute within DNN!?) The error returned is as follows:

System.Data.SqlClient.SqlException: Violation of UNIQUE KEY constraint 'IX_Permission'. Cannot insert duplicate key in object 'dbo.Permission'. Violation of UNIQUE KEY constraint 'IX_Permission'. Cannot insert duplicate key in object 'dbo.Permission'. The statement has been terminated.

Any idea?

I have the same problem, and when I run this script I have this error:

System.Data.SqlClient.SqlException: Line 7: Incorrect syntax near 'GO'. at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) at System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async) at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(DbAsyncResult result, String methodName, Boolean sendToPipe) at System.Data.SqlClient.SqlCommand.ExecuteNonQuery() at DotNetNuke.Data.SqlDataProvider.ExecuteADOScript(String SQL) at DotNetNuke.Data.SqlDataProvider.ExecuteScript(String Script, Boolean UseTransactions) DECLARE @ModuleDefID int SELECT @ModuleDefID = ModuleDefID FROM dbo.ModuleDefinitions WHERE FriendlyName = 'Forum' INSERT INTO dbo.Permission(PermissionCode, ModuleDefID, PermissionKey, PermissionName) VALUES('FORUM_MODULE',@ModuleDefID,'FORUMADMIN','Forum Administrator') INSERT INTO dbo.Permission(PermissionCode, ModuleDefID, PermissionKey, PermissionName) VALUES('FORUM_MODULE',@ModuleDefID,'FORUMGLBMOD','Global Moderator') GO