Same here, that's why I bumped an older similar thread a few hours ago. I'm trying to update from 6.1 to 6.1.2 to get the Core Audio driver implemented, but the 6.1.2 installer keeps telling me I should have 6.1 installed to proceed, WHICH I ALREADY HAVE! I never moved any folders around, my Digidesign folder is in Applications, where it should be.