Last modified: 2009-08-20 14:07:20 UTC
When Special:Preferences is loaded, the user's javascript for the corresponding skin is not loaded. However, the user's CSS is loaded. So if the CSS relies on the javascript, the result can unusable. For example, this can happen if the javascript moves content around in the DOM tree, and the CSS styles it based on the revised layout. Either the both the user javascript and CSS should load, or neither.
*** This bug has been marked as a duplicate of bug 10005 ***