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High Sierra email preview pane

My Mac email will not open the window pane anymore without double clicking EVERY SINGLE email. I've tried full page mail and lifting the little dot at the bottom center of page but no luck. Please help!

iMac 27", macOS 10.13

Posted on Oct 24, 2019 5:27 PM

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Posted on Oct 24, 2019 5:59 PM

Does the dot move?


Safe Boot from the HD, (holding Shift key down at startup), does the problem occur in Safe Mode?


Safe mode attempts to repair Disks & clears lots of caches, so if Safe Mode works try again in regular boot.

3 replies

High Sierra email preview pane

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