Sometimes when a user clicks the Sitecore button » All Applications, the list of all applictions may be displayed behind the menu. This beahvior is described at the picture below:
[

](http://photos1.blogger.com/blogger/6839/1864/1600/startmenu.png)This can be cured by completing the following steps:

  1. [

](http://photos1.blogger.com/blogger/6839/1864/1600/trusted_sites.png) 2. Please make sure that the client machine has MSXML 4.0 and WinXP SP2 installed.
3. Delete temporary internet files (IE/Options/Internet Options/Delete Files).