.jpg attachments
 

How come some .JPG attachments do not work? Small JPG attachments work but if there is something above 400 (just example) then the attachment becomes a white square with a red cross* what is wrong? I set it to 1200 x 900 and ca 256kb so It should wrong* wrong guess* it just don't. I uploaded attachment in maintenance and it worked there* it said there is nothing wrong. Sometimes attachments work from (not all) .png* .gif* .jpeg but something like .jpg will not.

Do I need to re-upload the attachments.php so maybe the problem is solved? Do I have the change something? This next to the "link problem" (see other thread) is also a thorn in the eye. Only got bad luck so far.

Regards