Okay, my COO changed the background of the sigs and I changed the text color (to black) in the local.config.php and we reset the images, but no change.
Ouch. That’s weird. If you delete all the images and reset the last text color, is it ok?,
Wait, the white blotch is part of the signature background. Sorry. I understand it now.
Yes, that’s a known bug, been fixed in the next one. The other fix is in a topic somewhere around here, either in the FAQ or another thread