download the new dolphin emulator… run it outside of coinops and see if it works right…

if it does, replace the dolphin emulator contents with the new one making sure the exe file is in the same place as the old one…

…also, got to coinops..launchers.windows folder and change the dolphin.conf text file to the following…

executable = emulatorsDolphinXDolphin.exe            <—— make sure the folders are the same as your emulator
arguments = –exec "%ITEM_FILEPATH%" –batch

hope that helps…