Weird bug in driver 3.27:

When moving the sliders in the Preferences window (HDSP Mixer) using the keyboard (left/right keys), the "dB" values are not updated. Click on "OK" then also doesn't save the new slider setting/position!

Also the "NONE" setting only is re-displayed in the MIDI Controller MIDI Output dropdown. The Input dropdown menus for Talkback and Listenback go back to "empty" state. Maybe this should be done for all three dropdowns the same. Either display "NONE" in all or make it empty for all (once the Preferences window gets reopened).