This is weird. I'm starting on a site using SSI -- please take a look at http://atdfinancial.com/taxes.shtml
for one of the 2nd level pages.
My problem? I can't work on that page or any other page with the includes inserted on that page in Design mode in Dreamweaver MX 2004. Everything below the menu totally disappears in Design mode when I add <!--#include file="menu.html" -->. If I remove the <!--#include file="menu.html" -->, the rest of the page shows up again.
The page is in XHTML with an external CSS file.
Again, the page is working fine when published. The problem is trying to work on it in Design mode in DWMX2004 (a fully licensed and activated version, I hasten to add).
I have rebooted my PC, changed #include file to #include virtual (unnecessary since the files are on the same level), and spent a couple of hours going in circles looking for an answer. Answer this and you deserve the beverage of your choice in addition to the 500 points.