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Buggy iMac


macrumors 601
Original poster
Dec 11, 2007
Having two issues with my 5k 27" iMac. Has happened for a few months now.

1. iMac will randomly wake from sleep and display a blue screen. The screen goes away after a few seconds when I physically wake the iMac.

2. While using one app, the mail app will randomly appear and take up half my screen with my currently open app taking up the other half.

Running 10.15.7

The blue screen issue has been happening for a while. I tried some fixes proposed to me in the past on here and it went away for a month but then returned. Any help is appreciated.
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