Display Dims When I Hit Delete
I'm on a 2015 27" iMac OS X El Capitan. One owner.
Suddenly my display dims whenever I hit the delete button.
With each hit, it gets a little darker.
In turn, when I hit tab, the brightness increases.
This is a real problem, as I hit delete frequently when making corrections as I type.
I have gone to >System Preferences >Display and unchecked Automatically adjust brightness.
I've also restarted my computer.
Any ideas how this was initiated and how to stop it.
Thanks for reading!
Elaine