PS - Sorry, I'm not running an Apple, and I don't know what OS means. My computer is hand built over a number of years so it isn't what it was originally. I have a guy in a computer shop who gives it a re-build every year or so to make it run faster and give it more memory for my art content (I'm a cartoonist plus I dabble in portraits and other stuff). I play Myst to keep the brain cells working. xxxx