I like to keep my music apps in a subfolder, inside the apps folder. That seems to work fine, but when I tried to install 9.1.4, the installer complained that no valid version was found in the apps directory. I don't recall that happening with previous updates. It was easily fixed, I just moved Logic to the apps folder, installed the update and then moved Logic back to the subfolder. But this got me thinking. Do I risk running into problems if I use custom folders for some apps? For Logic in particular of course. Does anyone know what Apple recommends? I do have some stability issues with Logic, but I've attributed them to certain third party plugs. I had similar issues with those plugs in Ableton Live and running Live directly from the apps folder didn't seem to make any difference. I'm sorry if this thread belongs to the OS section rather than the Logic 9 section! It's a little bit of both I suppose.