Delete the preference
file for Geek Perfect (close Geek Perfect first). In Finder, open the Go menu,
and select Go To Folder. Try entering the following location (making sure to
change the username to yours):
/Users/Username/Library/Preferences
Once in the Preferences folder, find and delete the following file:
com.bitperfectsound.GeekPerfect.plist
Open Geek Perfect and reset all options, enable DSD, and specify that the Geek Out is DSD capable.