http://downloadcenter.intel.com/Det...sion=Windows 7 (64-bit)*&DownloadType=Drivers They are newer then 2.71 ones at Realtek site (22.214.171.12473). But strange thing happened after update. The sound improved to the 'wow' level. More high frequencies, more air, more natural. I suspect that previous installation went wrong because how else is it possible?