Hello, I got a mac mini two weeks ago (first time having anything mac, came over from windows) the first week with it was fine, now when I move any pictures to my desktop or into a folder it no longer shows a preview for the image, instead they look like in the picture I have uploaded.. it never used to do this, it showed the actual image, I'm finding I have to go to quick action and convert every single image into a jpg (even though they aleady are!) then it shows the images.
Is there a setting or something I have missed? its getting really annoying!