OK, the background is not really white, it’s a painted wall, and it’s actually slightly purple. This morning, I tried exporting in jpeg and tiff and ironically they both worked fine! I tried full sharpening, and none to the same effect. The only difference is you kept mentioning sharpening, so I turned off the “sharpen for- glossy paper- standard” option in the export box. That appears to have been the problem. I reckon it can’t handle the double sharpening from the manual sharpening I did, plus the auto sharpening from the export box. Thanks a lot for taking the time to help, and I’ll have to watch out for “auto adjustments” in the future!