The latest version of Apple's OS X is easier to use than ever before, but not all of its joys are obvious - and some of the more obvious changes can be rather annoying. But there's also a lot to love about Lion. So to help you master the new OS, we've rounded up our favourite new Mac tips, features and workarounds to help you become a Lion tamer.1. Get normal scrolling backIf you think Lion's new natural scrolling mode is strange (and inconsistent: arrow keys work as they always have), it's easy enough to revert: go to System Preferences > Mouse and uncheck the "move content..." option.