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All replies
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Helpful answers
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Feb 27, 2016 6:27 PM in response to larryflexby Drew Reece,What app? What OS?
I suspect you may need XQuartz…
About X11 and OS X - Apple Support
Read the notes for the App in question if it has any advice for Mac users.
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Feb 27, 2016 6:57 PM in response to Drew Reeceby Grant Bennet-Alder,a little more info here as well as the good information Drew Reece has already suggested:
https://en.wikipedia.org/wiki/XQuartz
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