Start by downloading the latest driver (free) from the 'Support' tab on the product page. Locate the product page by:
1. Go to http://usa.yamaha.com/products/
2. Type the model # in the seach field and press enter.
3. Choose your model from the search results.
4. Select the 'Support' or 'Download' tab.
5. Click on the link for the driver that matches your Operating System (OS).
If this procedure does not produce the desired results, please contact Yamaha.