Unfortunately, this guru is visiting much later than when the postings were originally made in 2004
The same issue is happening periodically now with Joomla.
A friend had the problem tonight with their site, and Google bought up this thread as a place to look, but with no actual resolution. As TomT pointed out, there's not many solutions online.
But to add more to what TerryG posted, clearing the cache does work.
The problem in my friends case was that the poorly coded template XML caused the initial issue, and IE had cached the faulty page. After changing templates it was still cached, and so eventually refreshing the cache flushed it out.
Easiest way to test if it is the case (aside from deleting your temporary internet files straight away) is to load your page in Firefox or another browser, from which the site will load fresh.