The Unified Driver supports all nForce platform processors. It contains support for all nForce components in a single driver download and installation, making it simple to upgrade to the latest nForce drivers. WHQL certified kit for nForce, nForce2, and nForce3. Some of release 4.27 features: Audio Driver improvements: Introduced NVMixer replaces SoundStorm Control Panel for all audio configuration tasks. Introduced Speaker Wizard incorporates all NVSwap features, ensures correct speaker setup on analog or digital speaker systems. Introduced Cinesurround virtual 5.1 mixdown to headphones or 2 speakers.