NM, it was my crappy list-all-the-cookies code. Here's a working version if anybody cares:
PHP Code:
$allcookies array_keys($HTTP_COOKIE_VARS);
$allcookievalues array_values($HTTP_COOKIE_VARS);
if (
sizeof($allcookies) == 0)
{
    echo 
"<br><br>TurtleTips hasn't put any cookies on your system.";
}
else
{
    echo 
"<ul>";
    for (
$i 0$i sizeof($allcookies); $i++)
    {
        echo 
"<li><b>" $allcookies[$i] . "</b> containing <b>" $allcookievalues[$i] . "</b>";
        echo 
" (<a href=\"setcookie.php?name=";
        echo 
$allcookies[$i];
        echo 
"&delete=true&returnto=";
        echo 
$PHP_SELF;
        echo 
"\">delete</a>)</li>\n";
    }
    echo 
"</ul>";