Every time a new version of mine craft comes out and I try to update, it will linger on downloading runtime a couple times and then it will say failure to update native mine craft launcher. This causes me to be unable to even play mine craft unless I totally disconnect from the internet, open up mine craft, and then connect to the internet again. I've already installed the latest version of java, and I really need help. Does anyone have any suggestions? I use a mac computer.