I am having Dell N4110 laptop. I had given my laptop for repairing to the dell service centre and they formatted my laptop. They gave me the laptop without installing the drivers. However I managed to install the drivers from the CD which I had. I am facing a new problem in it when I play a music track on my laptop it starts immediately but the sound comes after 5-7 seconds late. I tried it with my headphones also same problem. How do I solve this problem can anyone provide the solution? Thanks in advance.