Sorry you are experiencing this problem.
I would just like to ask a few question to help identify the problem and hopefully be able to provide a solution.
1) What device are you using? (PC/Laptop, Tablet, Smartphone)
2)What Operating System? (Windows XP/Vista/7, Mac, Ubuntu, Android, Iphone)
3) What browser are you using (Internet Explorer, Mozilla Firefox, Google Chrome, Apple Safari)
Also where are you reffering to sounds, on the main site, or on live chess?
Regards
Hydra
How do you enable sounds????????