I have not had a problem with printing until this week. I cropped an image 6 by 4, chose 6 by 4 paper, selected borderless and got a 1cm white border. The image did not fill the preview window, so it is not a border problem. I have to use the slider to enlarge the preview image. Why???
I have been a PSE user since version 2 and have been through Epson and Canon A3 printers for the last 8 years.
The problem has only manifested itself in the past few days. The white space around the image is far too large to be a border that is obtained by choosing a border in the print options.
As you can see from my screenshot the preview is also wrong. The print mechanism merely reproduces what you see on the screen.