I just figured it out. I saw this post and it helped me.
I did have the ffollowing entries in my httpd.conf file.
AddType application/x-httpd-php .php .phtml
AddType application/x-httpd-php-source .phps
I noticed that it had an entry for .phtml which I don't use. So I added the following line and it worked.
AddType application/x-httpd-php .php .phtml .htm .html
Can anybody explain that to me as that is not the entry on any of my servers.