Package Validation Error

Hi team,
i am having the following error when executing an SSIS package. The package uses Microsoft Navision Native ODBC connection. The control Flow does not execute as a whole, BUT when executing the data flow task INDIVIDUALLY IT WORKS FINE.
Any Advice guys
TITLE: Package Validation Error
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Package Validation Error

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ADDITIONAL INFORMATION:

Error at Populate mis_CustLedgerEntry [DataReader Source [683]]: System.Data.Odbc.OdbcException
at System.Data.Odbc.OdbcConnection.HandleError(OdbcHandle hrHandle, RetCode retcode)
at System.Data.Odbc.OdbcConnectionHandle..ctor(OdbcConnection connection, OdbcConnectionString constr, OdbcEnvironmentHandle environmentHandle)
at System.Data.Odbc.OdbcConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningObject)
at System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection(DbConnection owningConnection, DbConnectionPoolGroup poolGroup)
at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)
at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)
at System.Data.Odbc.OdbcConnection.Open()
at Microsoft.SqlServer.Dts.Runtime.ManagedHelper.GetManagedConnection(String assemblyQualifiedName, String connStr, Object transaction)
at Microsoft.SqlServer.Dts.Runtime.Wrapper.IDTSConnectionManager90.AcquireConnection(Object pTransaction)
at Microsoft.SqlServer.Dts.Pipeline.DataReaderSourceAdapter.AcquireConnections(Object transaction)
at Microsoft.SqlServer.Dts.Pipeline.ManagedComponentHost.HostAcquireConnections(IDTSManagedComponentWrapper90 wrapper, Object transaction)
Error at Populate xxxEntry [DTS.Pipeline]: component "DataReader Source" (683) failed validation and returned error code 0x80131937.

Error at Populate xxxEntry [DTS.Pipeline]: One or more component failed validation.

Error at Populate xxxEntry: There were errors during task validation.

(Microsoft.DataTransformationServices.VsIntegration)

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hi Satya,
not really, its a simple package that is gettiing info from SQL Server using ODBC Navision native driver
Any advice?

hi satya,
i also set the delayvalidtion to true , but still having the same error,
any more clues ... thks