how can i take the underline from the theme of the forum?
for example e take de fiappleblue and i take all the underline and replace with none. and i go to the forum section and the underline appears.. why?

I have made the same changes to the theme mediocre, but the underline remains.
Please, what is the problem?

Check all the .css files and make sure there are no "text-decoration: underline;" if there are replace "underline" with "none".

If that's what you have, make sure you add "text-decoration: none;" to any css that has:

a:link
a:visited
a:hover