I use Firefox to do all my internet browsing, so this issue only came up recently when a coworker brought the problem to my attention.
For some reason, when my blog (http://jpsblog.org/blog) is being viewed in Internet Explorer, the sidebar is missing. But when you go to any other page on the blog (for example, the index page at http://jpsblog.org), the sidebar suddenly reappears.
Does anyone have any insights into why this is happening, and how I can fix the problem? Thanks!