Compatibility problem IE7

Hi all,

I have a little problem with my sidebar login script. It works great in Firefox but doesnt in Internet Explorer 7 I’ll describe my problem:

This is how the sidebar login looks like in Firefox while logged in:
http://img18.imageshack.us/img18/4371/login1p.jpg

And this is how it looks like in IE7 while logged in:
http://img18.imageshack.us/img18/2130/login2e.jpg

As you can see there is some white space under persoonlijke opties which need to be removed.

You can find the source code from the sidebar login script here:
http://www.nomorepasting.com/getpaste.php?pasteid=25481&seen=true&numbered=on&langoverride=php

If I look in the HTML source from my wordpress blog I see this at the place where the white space is:
<li class=”page_item”> which means that it has something to do with the line numbers 107 – 121 from the php file

Can someone please help me to solve this compatibility problem?
Thanks!