Silly though maybe… once you have installed Patchburn, have the app (Patchburn) installed the needed driver for the Pioneer?, I mean, Patchburn does not install the driver "automatically", you must select the Pioneer in the Patchburn window and then do a clic on 'Install' to let Patchburn install the appropriate driver, after that Patchburn must show you a message where you can read the driver was succesfully installed.