All drivers available from Microsoft* online upgrade services and the ones posted on our site. are generic versions of drivers.
Each Original Equipment Manufacturer, can add, remove or change the features on their systems, so they provide customized drivers to support the changes that they have done. Therefore you should always use the drivers provided directly by your computer or motherboard manufacturer.
By now try using the instructions available on this site and see if you can enable a Multi-monitor configuration with that information:
Furthermore, let us know what type of cables are being used to connect the external displays and inform if you are using any type of adapter or converter.