borders

I use an old mac mini for music Some day ago two boxes appeared on the screen, one gray and one dotted They won't go away even after rebooting I am a Windows guy, don't know much about Mac What could it be?

So I made the mistake of updating my 7 plus to iOS 13 and noticed that it has added standard and zoomed view option. The problem for me is the normal view has now added left and right borders to my emails and I hate it. Zoomed view corrects this in email back to how the 7 plus showed them before...

I have Lightroom 6 and primarily use it for cataloguing my photos and videos. I have only recently started making adjustments to them at a very basic level. I am wondering if there is a function within Lightroom 6 where I can add frames/borders to my photos? Also, whilst on the subject, are...