Tab Font and Size - How to change?

Joomla 1.7
CB 1.7

How do I change the tab font/size? It is too small to even read.

See attached file.

I have searched and searched.

Thanks you!

I changed to another template and it corrected the problem. I didn't realize it but I was using a RT 1.5 template with Joomla 1.7. I don't know if that was the problem or if the template was the problem. So now, I guess I have to find a 1.7 template and redo my site?? Is there a way to only change the template for the Profile Section (CB Plugin?) and leave my main template as is, or would running a 1.5 template with Joomla 1.7 not be a good idea anyway?

The saga continues...

I was using a Joomla 1.7 template so that is fine.
When switching to another template the problem goes away.
I don't want to switch templates.
I tried installing Firebug but don't understand how to use it enough to find the problem.

Can ANYONE please help me? Is this something to do with the sectiontableentry?

This is a class reunion site that I am doing for free. I was really trying not to have to pay for the documentation if I can get around it. Will the documentation help me if it is something missing in the template?

I used to be a mainframe programmer why do I feel so dumb with CSS?