Uninstalling and re-installing and application often won't remove your personnel settings for that application. So, if you had settings for the last instance of PicoDrive that don't jive with this one (common issue with devel level software), then you could see problems like the one you've got. Try this: Uninstall Picodrive. Open Terminal. rm -Rf .picodrive (I'm not sure of picodrive's settings directory name, so execute an "ls -al" from terminal and look for any directories named ".pico*" or ".pd*" Re-install picodrive from the apps catalog.