Please check this

Just checked in Moz 1.6 and IE 6

Both look the same. What exactly is the problem, because I don't see any. :/

The problem is in the comments page http://www.adenoia.com/ciencia/index.php?p=1

The navigation menu (the blue one at the right) appears at the bottom of the page instead of its original position at right.

In the index page, the menu alignment is correct: http://www.adenoia.com/ciencia/index.php

Just wondering if you have a extra end div (</div>) here:

</div>

</div>

<div id="menu">

Which starts on like line 150. It's a little hard for me too see, but that is the only thing I can think of, that maybe you ended your "rap" div accidentally, so your menu is getting place outside (bottom)

Thanks for your time LaLindsey. I've checked the </div> tags and they're ok. Maybe the css is correct and the problem is with IE. But still can't explain why the index page is ok and the comments page is wrong if they're using the same template and stylesheet!!!

No problem.

Maybe trying running your pages through the validators. It could be the simplies silliest thing that you can be glancing right over.

IE STINKS!

Yeah, sorry couldn't be of more help!

It looks like your form is making the left content too wide.
In IE this will just increase the width and not leave enough room for the right column.

Try reducing the cols="70" until the left column is the right size.

At last, the problem is solved!!! The error was in the blockquote tag, don't know what was wrong, but i delete it and everything is fine now. Muchas gracias a LaLindsey y a Stu por su cooperaciòn!! Saludos!