TinyMCE error: The requested URL was not found

[erajis]

Hey team I'm getting this error:
" The requested URL was not found on this server." - when I try to add an image or url link to my content area. I believe it has something to do with the mod_rewrite but I'm not sure how to go about adjusting this error.

I've posted some information about my set up / system below. Thanks for your time!

CMS Info:
Version: 1.10.3 "Hyacinthe"
Server Database : mysql (mysql)
Server Software: apache/2.2.22

Config:
<?php
# CMS Made Simple Configuration File
# Documentation: /doc/CMSMS_config_reference.pdf
#
--sensitive data erased --

$config['url_rewriting'] = 'mod_rewrite'; // this is new from 1.6
$config['use_hierarchy'] = true;
$config['page_extension'] = '.html';
$config['internal_pretty_urls'] = false;
$config['use_hierarchy'] = true; // no longer in the config file
$config['query_var'] = 'page';
?>

htaccess:
# Attempt to override some php settings, these settings may be helpful on some hosts if your
# default configuration does not meet CMS's minimum requirements, and your host
# has given your account appropriate permissions
php_value upload_max_filesize "10M"
#php_value session_save_path "tmp/cache"

#php_flag magic_quotes_gpc Off
#php_flag register_globals Off
#php_flag session.use_trans_sid Off

# (this is important, so uncomment if your host permit)
#Options -Indexes
#ServerSignature Off

Options +FollowSymLinks

# To prevent E_STRICT problems with PHP 5.3+ you can uncomment the following lines
# Note: These settings should only be enabled for production sites!
#php_flag display_startup_errors 0
#php_flag display_errors 0
#php_flag html_errors 0
#php_value docref_root 0
#php_value docref_ext 0

<IfModule mod_rewrite.c>
RewriteEngine on
#
#Sub-dir e.g: /cmsms
RewriteBase /

# 301 Redirect all requests that don't contain a dot or trailing slash to
# include a trailing slash
# but ignore POST requests.
RewriteCond %{REQUEST_URI} !/$
RewriteCond %{REQUEST_URI} !\.
RewriteCond %{REQUEST_METHOD} !POST$
RewriteRule ^(.*) %{REQUEST_URI}/ [R=301,L]

# Rewrites urls in the form of /parent/child/
# but only rewrites if the requested URL is not a file or directory
#
RewriteCond %{REQUEST_FILENAME} !-f [NC]
RewriteCond %{REQUEST_FILENAME} !-d [NC]
RewriteRule ^(.+)$ index.php?page=$1 [QSA]
RewriteRule ^News/rss(.+)$ index.php?page=News/rss$1
RewriteRule ^(.+).htm$ index.php?page=$1 [QSA]
</IfModule>

<IfModule mod_header.c>
# Disable ETags
Header unset ETag
FileEtag None
</IfModule>

<IfModule mod_deflate.c>
# Compress css, plaintext, xml, gif, and images in transport.
AddOutputFilterByType DEFLATE text/css text/plain text/xml image/gif image/jpeg image/png
</IfModule>

<IfModule mod_expires.c>
<FilesMatch "\.(ico|pdf|flv|jpg|jpeg|png|gif|js|css|swf)$">
# Set expires tags on various files... so that the browser wont attempt to reload them.
ExpiresActive On
ExpiresDefault "access plus 1 year"
<IfModule mod_header.c>
# Setting cache control to public allowes proxy servers to cache the items too.
Header set Cache-Control "public"
</IfModule>
</FilesMatch>
</IfModule>

[calguy1000]

TinyMCE is not a core module.

[Rolf]

Does is work with pretty url switched off?