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I have recently updated the software on my computer and when I turned it back on today, it has vertical lines in a block in the middle of my screen.
The Mac is only 6 months old and has not ever moved from my desk. Does anyone know how to resolve this, please?
iMac 21.5″, macOS 11.4
Please restart in Safe Mode and then restart normally and test. If you still have a problem please call AppleCare ASAP.
Please restart in Safe Mode and then restart normally and test. If you still have a problem please call AppleCare ASAP.
Vertical lines on my screen
