To DebraLea,
Go up to the top right of the page where it shows your picture where you are logged on. Click on that a list appears of things you change. My Ticker is one of them. Click on that and it will take you to the ticker page you had set up. There are options to Edit, Delete and Add to Signature. I think the add to signature is what is messing up everybody. The next thing to check is go back to your logged on at the top of the page and click again. My Settings is the next one to select. When that come up, look at the list on the left. Choose Signature, when this returns you can see if any tickers remain for your signature. I deleted all my and when I sit up a difference ticker, it stilled show the last one I used. Pretty frustrated with it. I think I will get an external again. Hope this helps.