Forcing lower case URLS in htaccess gives 500 server error

Hi all,

Im getting a 500 server error when trying to add a 'force lower case URLS' rule tot he current .htaccess file.... Any ideas why? Im a newbie at apache stuff...



<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^signup$ signup.php
RewriteRule ^account$ account.php
RewriteRule ^logout$ logout.php
RewriteRule ^login$ login.php
RewriteRule ^recent-questions$ recent.php
RewriteRule ^popular-questions$ popular.php
RewriteRule ^confirmemail$ confirmemail.php
RewriteRule ^confirmemail/(.*) confirmemail.php?code=$1
RewriteRule ^ask$ ask.php
RewriteRule ^member/(.*)/(.*) memberprofile.php?pid=$1&name=$2
RewriteRule ^editaccount$ editaccount.php
RewriteRule ^changeemail$ changeemail.php
RewriteRule ^changepass$ changepass.php
RewriteRule ^top-experts$ top-experts.php
RewriteRule ^search$ search.php
RewriteRule ^rss/recent$ rss_recent.php
RewriteRule ^rss/popular$ rss_popular.php
RewriteRule ^forgot$ forgot.php
RewriteRule ^resetpassword/(.*) resetpassword.php?code=$1
RewriteRule ^resendconfirmation/(.*) resendconfirmation.php?userid=$1
RewriteRule ^termsofuse$ termsofuse.php
RewriteRule ^privacypolicy$ privacypolicy.php
RewriteRule ^aboutus$ aboutus.php
RewriteRule ^advertising$ advertising.php
RewriteRule ^contactus$ contactus.php
RewriteRule ^([^/.]+)/([^/.]*)?$ view.php?title=$1&id=$2&%{QUERY_STRING}
RewriteRule ^([^/.]+)(\/)?$ categories.php?key=$1
RewriteCond %{HTTP_HOST} ^example.com
RewriteRule (.*) http://www.example.com/$1 [R=301,L]
RewriteMap lc int:tolower
RewriteCond %{REQUEST_URI} [A-Z]
RewriteRule (.*) ${lc:$1} [R=301,L]
</IfModule>

<IfModule mod_security.c>
# Turn off mod_security filtering.
SecFilterEngine Off

# The below probably isn't needed,
# but better safe than sorry.
SecFilterScanPOST Off
</IfModule>



thanks,

Scott