white lines on icons on the dock

Since the latest update my 2020 macbook air has stripes on some of the icons on the dock, which disappear when putting the cursor on them. Why? On this screenshot it is the calendar and the google chrome icons. Some days it is other icons. The computer has also been a little skittish overall. Overheating when not many programs are open, shutting down programs in the middle of a process. Is a 2020 macbook considered old?

MacBook Air 13″, macOS 15.3

Posted on Mar 17, 2025 4:36 PM

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2 replies

6x6

Level 6

18,501 points

Mar 17, 2025 5:46 PM in response to eurythmyincalgary

Hello eurythmyincalgary,

A solution I saw on another forum is to go to System Settings > Appearance, select the 3 appearances one by one (Light, Dark, Auto), waiting for each of them to be applied to the screen, and reselect your original appearance.

Your Mac is not considered old yet. You may have some processes running in the background that slow down your Mac. A common culprit is an anti-virus.

Mar 17, 2025 7:00 PM in response to 6x6

Thank you. I will try.

I wondered about the antivirus program.

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white lines on icons on the dock