When I go to quote someone it takes me to the editor but doesn't have the quote there. It was working fine before I upgraded to 1.6.10.
Thanks.
As stated by the upgrade script, after upgrading you should check for any updated templates.
Open template 'postbit_quote'.
Replace with:
<a href="newreply.php?tid={$tid}&replyto={$post['pid']}"><img src="{$theme['imglangdir']}/postbit_quote.gif" alt="{$lang->postbit_quote}" title="{$lang->postbit_quote}" /></a>