g1smd - 9:24 am on Apr 19, 2011 (gmt 0)

To be very clear on the original test, type "example.com/index.html" into your web browser, and check the results.

Another thing to check is, do any of the internal links point to non-www URLs?

Run Xenu LinkSleuth over the site and study the report in detail (you will surely find other issues that need fixing too).