I installed the NUC7OC5.9 only to find out it was installing in Russian. Very difficult to properly install when I only read English. So I had to delete that installation, and try the NUC7OC5.8. That install went pretty smoothly, however, I am having a problem signing into messages. It gives me, "An error occurred during authentication." I noticed when setting up iCloud, it took an abnormally long time. I would say it took about 4-5 minutes for it to set up iCloud, and I only have the free 5GB account. Any thoughts on how to get messages to work?