The Intel DZ77BH-55K has Dobly Home Theater v4 support, however the only user interface available to it is to switch it on/off and change between the three modes (musci/video/gaming). My Acer laptop also has Dobly Home Theater v4 and has a tray icon which allows the changing of the previously mentioned options as well as a settings page. The settings page allows the equalizer for each mode to be adjusted as well as the volume leveler/surround virtualizer/dialogue enhancer etc. It would be really great if the Dobly Home Theater v4 settings application could be added to the audio driver installation as the current implementation is a bit crippled. This should be possible as it is an included module of Dobly Home Theater v4.
EDIT: For clarity this is the settings window which contains the features which are currently not usable:
This control panel exists on my laptop which also supports Dolby Home Theater v4.