Session hash being displayed after every url

[Simon Lloyd]

Hi all, does anyone have any idea why the session hash would be displayed after every url when i check the source code? currently a site link would look like this:
<a href="sendmessage.php?bede63aa5caa06e63c0ea7420b270bde" rel="nofollow" accesskey="9">

A normal input type would look like this:
<input type="hidden" name="s" value="" />

The one im viewing in the source code looks like this:
<input type="hidden" name="s" value="bede63aa5caa06e63c0ea7420b270bde" />

Anyone got any ideas?

[Simon Lloyd]

Never mind, seems like there must be a cookie problem or the cookie settings on the site