I have the same issue; have just reinstalled the driver package and done the BIOS update referred to elsewhere in these posts with no effect - sound volume is too low for Skype calls, etc. It was fine for the first couple of weeks operation (purchased mid-June) but useless since then.
product # C0U45EA#ABZ
serial # [Personal Information Removed]
OS Windows 8 32-bit
Also tried the 'power reset'; again, no effect-
many thanks, Richard
