Yes, although it's not actually a problem with jQuery not loading properly, but with the CSS extension. It was discussed on this list, in fact:
http://www.gossamer-threads.com/lists/wiki/mediawiki/739786 http://www.gossamer-threads.com/lists/wiki/mediawiki/739807
In the future, please report the exact error message, because not everyone has magic guessing powers like I do ;)