EX35_bernard wrote:still the same error. I wonder what I'm doing wrong???
OK - the short answer is that it was recently reported by another user and the cause is still under investigation. However, in that case, opening the image in another image editing program and re-saving it cured it.
I would be tempted to use a universal, simplistic program like MS Paint to do this, to ensure maximum compatibility. While I'm there, I'd also reduce the size a little (even 69 x 69), just to be sure it's not related to being at the upper size limit.
FWIW, when I did mine many months ago, it took my 4,780 byte JPG file without any complaints.
Let me know how you make out.
Cheers,David