Hi! I suspect an upgrade is causing problems to a software I really really need for my thesis. This is the upgrade: 2009-09-16 13:12:41 +0200: Installed "Java for Mac OS X 10.5 Update 5" (1.0) Is it possible to somehow roll back an upgrade? I can't see any way. I keep backups hourly using time machine, but with the exception of the application directory. What option do I have? I would like to avoid a clean install... :-( Thanks for any information!