Doc,
Many of us put a 'permanant' link in the optional image url space of our posts, so the same picture will come up every post...at least until we change it. If the chipper has uploaded the picture to Greg's storage space, the picture is deleted after three weeks. If the chipper doesn't replace the picture before it's deleted, there will be a link to nowhere...hence the X .

Hope that helps...it sounds clear as mud! *rofl!