[Robert S]

It looks like an MSIE rendering issue.

I get that effect in MSIE7 also, but I looked at the HTML and it's fine and when I looked at this thread in Firefox, it's also fine.

Try putting an extra enter or two at the bottom of your signature and see if that fools Internet Explorer.

EDIT: Sorry, just tried, it ignores that... instead if you start a new line at the bottom of your signature and hit the Bold button, it will insert a pair of BBCode bold tags on that new line. Then save your signature. It should then look how you want it. A bit clunky, but it seems to have fixed the issue on mine.