Q: Why does my late 2012 iMac have a light blue line down the entire length of the screen
My late 2012 27" iMac (no optical drive) has suddenly got a light blue line extending the entire height of the screen? Any answers?
iMac, OS X El Capitan (10.11.1)
Posted on Nov 10, 2015 1:36 AM
Community Specialists
Hello Firecrest100,
Thank you for using Apple Support Communities.
I see that you have a light blue line extending across the screen. I would first recommend taking a screen shot from your computer.
How to take a screenshot on your Mac
Take a look at the image, if you don't see the line in the image, then we are looking at a hardware problem and the iMac needs service.
Service Answer Center - Mac desktops
If the line is in the image, then we are looking at software. If this is the case, post back and we can go from there to see about getting it resolved.
Best regards
Posted on Nov 12, 2015 12:48 AM