We are having problems with our plug-in under Mavericks, it seems like none of the juce::File operations are working. The directory we store presets etc under is /Library/Application Support/OurCompany/
Yup, they switchted the default permissons to read only and it "repairs" our folder post the mavericks upgrade to this. At least we can issue a fix, I was really thinking that our activation system was broken due to some maverick changes in how it handles MAC addresses.