- Joined
- Mar 12, 2021
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- 5
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Hard to describe what keeps happening to my desktop. In the menus (e.g., apple menu, upper right), the highlight zips up the list, then zips up again from the bottom, I can't click on any one of them. Likewise the volume control (upper left), the little circle zips along jerkily, all the way to the right then starts over again, cycling. I restart the computer and it's OK, until a few days later it does it again. some sort of bug, virus? Mac High Sierra 10.13.6. Any tips appreciated.