Logout problem.

[punk23]

Hi guys,

I have a problem on my VB site. This is what happens;

1) User logs in and clicks "Remember me"
2) User continues to use the site succsessfully for hours
3) User closes browser
4) When the user opens the browser and goes to my site again, they are shown as logged out

I have a custom coded skin and whilst I'm waiting for the coder to come back to me, thought I would ask in here.

The code for the login box is as follows;

PHP Code:

<!-- login form -->
        <form action="login.php?do=login" method="post" onsubmit="md5hash(vb_login_password, vb_login_md5password, vb_login_md5password_utf, $show[nopasswordempty])">
        <script type="text/javascript" src="clientscript/vbulletin_md5.js?v=$vboptions[simpleversion]"></script>
    
                    <div class="navbit_split"><input type="text" class="bginput2" name="vb_login_username" id="navbar_username" size="28" accesskey="u" tabindex="101" value="Username" onfocus="if (this.value == 'Username') this.value = '';" /></div>
                    <input type="password" class="bginput2" name="vb_login_password" id="navbar_password" size="28" tabindex="102" value="Password" onfocus="if (this.value == 'Password') this.value = '';" />
                    <div class="navbit_advert"><input name="checkbox" type="checkbox" value="" /> Remember me ?</div><br />
                    <div class="navbit_advert"><a href="login.php?do=lostpw">Forgot password?</a>&nbsp;&nbsp;&nbsp;<input class="navbit_submit" type="image" src="images/styles/pchelpforum/styles/loginButton.gif" value="Submit" alt="Submit" tabindex="104" title="Enter your username and password in the boxes provided to login, or click the 'register' button to create a profile for yourself." accesskey="s" /></div>
        <input type="hidden" name="s" value="$session[sessionhash]" />
    <input type="hidden" name="securitytoken" value="$bbuserinfo[securitytoken]" />
        <input type="hidden" name="do" value="login" />        
        <input type="hidden" name="vb_login_md5password" />
        <input type="hidden" name="vb_login_md5password_utf" />
        </form>
            <!-- login form --> 


Can anyone spot a mistake or problem in that code?

Thanks for looking