I went to ticker.com and created a picture to attach to my signature. I have tried to cut and paste but it keeps saying that it is invalid. I cut and past all text in the box. Am I doing something wrong?

I had the same problem. Try to highlight the picture and cut and paste it with it highlighted rather than trying to get the url cut and pasted. I am hoping that it worked on mine. At least I was able to get the picture under my signature.