dbconnect too slow in ACAD2008

Hello,
I'm trying to connect my Drawing to an Oracle Database using the 
following Code:

   // Late Binding
  // gACADApp:=comobj.GetActiveOleObject('AutoCAD.Application.16'); // 2005
   gACADApp:=comobj.GetActiveOleObject('AutoCAD.Application.17'); // 2008


   gDbconnect:=gAcadApp.GetInterfaceObject('CAO.DbConnect.16'); // 2005 
And 2008

   // Connect to Database
   gDBConnect.Connect('Datasource','User','Password',true);

   Showmessage('Done');

In ACAD2005 everything works as it should - but ACAD2008 takes too long 
to establish the connection.

The Datasource is an ODBC Datasource using the Oracle Driver.

Any suggestions?

Thanks

Thomas