htaccess 404 redirect problem

Merged with htaccess 404 redirect problem.

Here is my htaccess contents below. The 404 redirect is to redirect anyone to the index.htm page if they type in the wrong address or click a link that is broken or moved. The Problem is I get this "No input file specified." when a link is broken or typed wrong, here is an example www.cases.com/1234.htm

RewriteEngine on
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f 
RewriteCond %{REQUEST_URI} \.(gif|jpg|jpeg|png)$ 
RewriteRule .* products/noimage.jpg [L]

Options +FollowSymLinks 
RewriteEngine on 
RewriteCond %{HTTP_HOST} ^cases.com [NC] 
RewriteRule ^(.*)$ http://www.cases.com/$1 [L,R=301]


RewriteEngine On
Options +FollowSymlinks
RewriteBase /
# Rewrite Rule for blog.cases.com
Rewrite开发者_开发知识库Cond %{HTTP_HOST} blog.cases.com$
RewriteCond %{REQUEST_URI} !blog/
RewriteRule ^(.*)$ blog/$1

ErrorDocument 404 /index.htm

AddType application/x-httpd-php .htm .html .php