Hello MsDogwood Thanks for using the Lenovo forums. Also tried downloading the Windows 7 driver - it would not install - says 'PCEE needs to be installed'. Also tried deleting everything related to Conexant and Dolby and reinstalling the driver from Lenovo, as suggested for a different model on this forum. Have installed the latest audio driver from Lenovo.
Supposedly has Dolby audio - but the interface doesn't look like the interface for Dolby Advanced Audio and the equalizer doesn't do anything.