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I have large pixel type squares on my screen running Mac OS High Sierra - Is there a fix?

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  • Last reply by ametronav

ametronav
ametronav
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When I launch Thunderbird using my Mac running OS 10.13.1 (High Sierra), my screen populates with groups of square pixels - hundreds of them. If I reboot my computer and don't launch Thunderbird the problem goes away. My computer also freezes from time to time when running Thunderbird.

When I launch Thunderbird using my Mac running OS 10.13.1 (High Sierra), my screen populates with groups of square pixels - hundreds of them. If I reboot my computer and don't launch Thunderbird the problem goes away. My computer also freezes from time to time when running Thunderbird.

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Zenos
Zenos
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Have you tried with hardware acceleration on and off?

On Windows and Linux, it's under Tools|Options|Advanced|General.

The route through the menus may be different in your case.

http://kb.mozillazine.org/Menu_differences_in_Windows,_Linux,_and Mac

ametronav
ametronav Question owner
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I tried turning on hardware acceleration but it doesn't solve the problem. Any other suggestions?? I have an iMac vintage 2011 operating OS High Sierra.