Feed from the Twitter widget doesn't always appear

I’ve got the Twitter widget installed on my site here towards the bottom area. Client says that the feed will dissapear sporadically from time to time even though I see it on my own browser. Does anyone know what would cause this? Is there something in the html code that would cause this? Or is it something on Twitter’s side?

Usually it’s a problem of Twitter being over capacitated. Good feed scripts will compensate for this by providing a “feed not available” message. I would switch to a different script. Do a google search for “twitter feed script”… you should be able to find a better script that will provide compensation for this problem.

Maybe Twitter is working on an IE9 fix? http://www.sitepoint.com/forums/php-34/ie9-problem-twitters-user_timeline-code-779020.html