Using the WordPress Appearances/Header page, I uploaded a new header image. It appears to upload fine and even shows it perfectly displayed on the "Crop" page:
https://jmjsites.info/eve-lyn/songs/images/upload1.jpg
Ok so far.
I click the "Crop and Publish" button and the image then appears with a black background or weird negative image:
https://jmjsites.info/eve-lyn/songs/images/upload2.jpg
If I go to the site the weird image also appears:
https://jmjsites.info/eve-lyn/songs/images/upload3.jpg
I have tried the following plugins with no relief:
HITS- IE6 PNGFix
WP Pngfix
Please help, this is the first time I have seen this happen in many many years of using WordPress.