I heartily recommend keeping that computer at 10.6.8. It is the last that can run older PPC programs and is rock stable. IMO that was the best OS Apple made and despite it not having the latest security and not being able to run newer apps, it is a joy to use. My eyes don't like the flat appearance of the recent OS and I will cheer the day Apple allows some sort of skin or appearance adjustments. ( I miss Kaleidoscope from OS 9

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I have not tried it myself, but see if