older and newer entries link not working?

Hi,

I have the ‘older’ and ‘newer’ entries links working on my main page but on single post pages it just has the text but its not hyperlinking. The code looks the same to me from index.php and single.php

<ul>
	<li><?php next_post_link('&laquo; Older Entries') ?></li>
	<li><?php previous_post_link('Newer Entries &raquo;') ?></li>
 </ul>

Suggestions?

Also, I have a css rule for no style on the unordered list tage

but I’m still getting bullets?

Help on either or both things would be greatly appreciated