I've looked at your site with
Firebug, and it appears that you have a few javascript error which are most likely causing the problem.
One possible cause of the javascript errors is that you have both Vertical Accordion and TabShow published, but they don't have any content. You need to either disable the widgets temporarily, or give them content to display.
There is another error as well, but I'm not sure where it's coming from:
SyntaxError: missing } after function body
...).submit(function() { // update user interface jQuery('#response').html('Add
If you have added any third-party plugins or any custom code, you'll want to make sure that's not the cause of the problem.
The reason this problem only appears when the fader is published is because it's a special feature that causes the site to fade in when that specific widget position is active; it actually has nothing to do with the fader itself.