Those of you with the small tickers, the problem has been resolved, but you will need to either edit your ticker, or delete the existing one and add new code. The easiest way is to edit it.
Go into your profile. Select Forum Profile Information. Where your ticker code is find the first tag that starts
[img width=325 height=65] delete the width & height information and any spaces. You must be left with the following
[img] with no spaces, if there are spaces it won't work and you'll just get code displayed. If you have more than one ticker you will need to do it for each ticker.
If anyone gets especially stuck let me know, and I'll do it for you
HTH