I switched to a dedicated server this week and much of it is a bit over my head. One thing I cant seem to resolve is that the includes all work on all sub pages, but do not work in the index.html page.
All use the same .htaccess file... This is the case for all 5 of my web domains.
This is what I have in there now.

Options +FollowSymLinks
Options +Includes
AddType text/html .shtml (recently added)
AddOutputFilter INCLUDES .shtml (recently added)
AddHandler server-parsed .htm
DirectoryIndex index.htm index.html (recently added)

What is different about this which worked in hosting account but not server account?