01-28-2013 01:17 PM - last edited on 07-05-2013 09:27 AM by Doug
Download and install if there is any update available regarding the issue in by using the exact model # of your computer here: http://esupport.sony.com/US/p/select-system.pl?DIRECTOR=DRIVER
Try performing all the steps mentioned here:
If the issue persists, contact Sony Service Assistance Team here: http://esupport.sony.com/US/p/service.pl
Note: If my post answers your question, please mark it as an "Accepted Solution."