[Plugin: Pierre's Wordspew] Posts don't show up automatically in IE8

I’ve been using this plugin for awhile and love it, but I just noticed that posts don’t show up automatically when I use IE8. The posts are posting fine and show up for other users in other browsers, but the person posting using IE8 has to hit <refresh> to get their posts to show.

I have the plugin enabled on a per-site level for a few sites including these 2:
https://cratel.wichita.edu/blogs/engr101fall2010/
https://cratel.wichita.edu/blogs/ee585spring2011/

The first site is a good one for test posts, as the class for that site has ended.

Pierre’s Wordspew V 6.1 with WP 3.0.5 multisite