Solution:

If you think the driver didn't load --- Start the Event Viewer in Windows NT. The Event Viewer displays specific messages regarding loading and starting the driver. Problems loading the driver are logged to this file. To learn more about using this application, refer to Using the Event Viewer. If the driver still does not load --- Rename the default configuration file so the driver loads a blank configuration. If the configuration file is corrupt, it may prevent the driver from loading. You can retrieve a corrupted configuration file if you saved it as a .CSV file; otherwise, you have to rebuild the driver configuration.