i've tried everything - file permissions are set correctly, asp.net version is set correctly, i created a database.mdf file in app_data, using the default connection strings, have a working version of sql server 2005 express, so i should have no problem using attached databases

however, i get this on install:

ERROR: Could not connect to database specified in connectionString for SqlDataProviderSystem.Data.SqlClient.SqlException: Cannot open user default database. Login failed. Login failed for user 'KSWITCH\ASPNET'. at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) at System.Data.SqlClient.SqlConnection.Open() at Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteNonQuery(String connectionString, CommandType commandType, String commandText, SqlParameter[] commandParameters) at Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteNonQuery(String connectionString, CommandType commandType, String commandText) at DotNetNuke.Data.SqlDataProvider.ExecuteScript(String Script, Boolean UseTransactions) /************************************************************/ /***** Initialization Script *****/ /***** *****/ /***** *****/ /***** Note: To manually execute this script you must *****/ /***** perform a search and replace operation *****/ /***** for dbo. and *****/ /***** *****/ /************************************************************/ if exists (select * from dbo.sysobjects where id = object_id(N'Version') and OBJECTPROPERTY(id, N'IsTable') = 1) begin if '' <> '' begin EXECUTE sp_rename N'dbo.Version', N'Version', 'OBJECT' EXECUTE sp_rename N'PK_Version', N'PK_Version', 'OBJECT' EXECUTE sp_rename N'IX_Version', N'IX_Version', 'INDEX' ALTER TABLE dbo.Version ADD CONSTRAINT IX_Version UNIQUE NONCLUSTERED ( Major, Minor, Build ) ON [PRIMARY] end end else begin if not exists (select * from dbo.sysobjects where id = object_id(N'Version') and OBJECTPROPERTY(id, N'IsTable') = 1) begin CREATE TABLE dbo.Version ( [VersionId] [int] IDENTITY (1, 1) NOT NULL , [Major] [int] NOT NULL , [Minor] [int] NOT NULL , [Build] [int] NOT NULL , [CreatedDate] [datetime] NOT NULL ) ON [PRIMARY] ALTER TABLE dbo.Version WITH NOCHECK ADD CONSTRAINT [PK_Version] PRIMARY KEY CLUSTERED ( [VersionId] ) ON [PRIMARY] ALTER TABLE dbo.Version ADD CONSTRAINT IX_Version UNIQUE NONCLUSTERED ( Major, Minor, Build ) ON [PRIMARY] end end System.Data.SqlClient.SqlException: Cannot open user default database. Login failed. Login failed for user 'KSWITCH\ASPNET'. at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) at System.Data.SqlClient.SqlConnection.Open() at Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteNonQuery(String connectionString, CommandType commandType, String commandText, SqlParameter[] commandParameters) at Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteNonQuery(String connectionString, CommandType commandType, String commandText) at DotNetNuke.Data.SqlDataProvider.ExecuteScript(String Script, Boolean UseTransactions) if exists (select * from dbo.sysobjects where id = object_id(N'GetDatabaseVersion') and OBJECTPROPERTY(id, N'IsProcedure') = 1) drop procedure dbo.GetDatabaseVersion System.Data.SqlClient.SqlException: Cannot open user default database. Login failed. Login failed for user 'KSWITCH\ASPNET'. at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) at System.Data.SqlClient.SqlConnection.Open() at Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteNonQuery(String connectionString, CommandType commandType, String commandText, SqlParameter[] commandParameters) at Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteNonQuery(String connectionString, CommandType commandType, String commandText) at DotNetNuke.Data.SqlDataProvider.ExecuteScript(String Script, Boolean UseTransactions) create procedure dbo.GetDatabaseVersion as select Major, Minor, Build from Version where VersionId = ( select max(VersionId) from Version ) System.Data.SqlClient.SqlException: Cannot open user default database. Login failed. Login failed for user 'KSWITCH\ASPNET'. at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) at System.Data.SqlClient.SqlConnection.Open() at Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteNonQuery(String connectionString, CommandType commandType, String commandText, SqlParameter[] commandParameters) at Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteNonQuery(String connectionString, CommandType commandType, String commandText) at DotNetNuke.Data.SqlDataProvider.ExecuteScript(String Script, Boolean UseTransactions) if exists (select * from dbo.sysobjects where id = object_id(N'FindDatabaseVersion') and OBJECTPROPERTY(id, N'IsProcedure') = 1) drop procedure dbo.FindDatabaseVersion System.Data.SqlClient.SqlException: Cannot open user default database. Login failed. Login failed for user 'KSWITCH\ASPNET'. at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) at System.Data.SqlClient.SqlConnection.Open() at Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteNonQuery(String connectionString, CommandType commandType, String commandText, SqlParameter[] commandParameters) at Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteNonQuery(String connectionString, CommandType commandType, String commandText) at DotNetNuke.Data.SqlDataProvider.ExecuteScript(String Script, Boolean UseTransactions) create procedure dbo.FindDatabaseVersion @Major int, @Minor int, @Build int as select 1 from Version where Major = @Major and Minor = @Minor and Build = @Build System.Data.SqlClient.SqlException: Cannot open user default database. Login failed. Login failed for user 'KSWITCH\ASPNET'. at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) at System.Data.SqlClient.SqlConnection.Open() at Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteNonQuery(String connectionString, CommandType commandType, String commandText, SqlParameter[] commandParameters) at Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteNonQuery(String connectionString, CommandType commandType, String commandText) at DotNetNuke.Data.SqlDataProvider.ExecuteScript(String Script, Boolean UseTransactions) if exists (select * from dbo.sysobjects where id = object_id(N'UpdateDatabaseVersion') and OBJECTPROPERTY(id, N'IsProcedure') = 1) drop procedure dbo.UpdateDatabaseVersion System.Data.SqlClient.SqlException: Cannot open user default database. Login failed. Login failed for user 'KSWITCH\ASPNET'. at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) at System.Data.SqlClient.SqlConnection.Open() at Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteNonQuery(String connectionString, CommandType commandType, String commandText, SqlParameter[] commandParameters) at Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteNonQuery(String connectionString, CommandType commandType, String commandText) at DotNetNuke.Data.SqlDataProvider.ExecuteScript(String Script, Boolean UseTransactions) create procedure dbo.UpdateDatabaseVersion @Major int, @Minor int, @Build int as insert into Version ( Major, Minor, Build, CreatedDate ) values ( @Major, @Minor, @Build, getdate() )