My new Mac is running Sierra, and I use OpenOffice. After using my new Mac for a few days, I have been having lots of isues with OO Writer. It crashes a lot and now it says it is "locked". When I looked up my error message, people say I need to use an older version of Java for OO to run. I thought that you were supposed to disable Java because it is a security threat to your Mac. What is the truth? Is installing an "old" version of Java on my new Mac a bad idea? Is installing any version of Java on my new Mac a bad idea? And what are your thoughts about Open Office?