Trailing slashes on URL rewrite in Apache

[jsdf]

Hi,
I recently moved my rewrite rules from .htaccess to /etc/apache2 as I have root access. However, what I've noticed is that, after moving the rules, I now receive double trailing slashes when any of the rules are activated.
For example,

http://mysite.com

will be rewritten to

http://www.mysite.com//

I am running Apache 2 with Drupal 5.1 on Debian Linux.

Does anyone have suggestions on how to fix this? I have posted contents of the site's top-level configuration file, as well as the .htaccess file, below.

Note that, after I moved the rewrite to the top-level configuration file, .htaccess is now untouched from the default Drupal configuration.

Thank you,
Jason

Contents of /etc/apache2/sites-enabled/www:

NameVirtualHost *:80

<VirtualHost *:80>

    DocumentRoot    /var/[URL unfurl="true"]www/wdnt_test[/URL]
    ServerName      [URL unfurl="true"]www.mysite.com[/URL]
    ServerAlias     [URL unfurl="true"]www.myoldsite.com[/URL]
    ServerAlias     mysite.com
    ServerAlias     myoldsite.com
    ServerAlias     test.mysite.com
    ServerAlias     test.myoldsite.com

    ErrorLog        /var/log/apache2/wdnt-error.log
    TransferLog     /var/log/apache2/wdnt-access.log

    CustomLog       /var/log/apache2/wdnt-combined.log combined

    <Directory "/var/[URL unfurl="true"]www/wdnt_test">[/URL]
        AllowOverride All
        Options +ExecCGI
        AddHandler cgi-script .cgi .pl
    </Directory>

    Alias /awstats-icon/ "/usr/share/awstats/icon/"
    Alias /awstatscss "/usr/share/doc/awstats/examples/css"
    ScriptAlias /awstats /usr/lib/cgi-bin/
    <Directory /usr/lib/cgi-bin>
        AuthName "CGI restricted"
        AuthType Basic
        AuthUserFile /etc/awstats/awstats.htpasswd

        <Files awstats.pl>
                Require valid-user
        </Files>
        Options ExecCGI -MultiViews +SymLinksIfOwnerMatch
    </Directory>

    RewriteEngine On

#RewriteRules for myoldsite.com, [URL unfurl="true"]www.myoldsite.com,[/URL] and mysite.com
    RewriteCond %{HTTP_HOST} ^myoldsite\.com [OR]
    RewriteCond %{HTTP_HOST} ^mysite\.com [OR]
    RewriteCond %{HTTP_HOST} ^[URL unfurl="true"]www\.myoldsite\.com[/URL]
    RewriteRule ^(.*)$ [URL unfurl="true"]http://www.mysite.com/$1[/URL] [R=301,L]
</VirtualHost>

Contents of .htaccess:

#
# Apache/PHP/Drupal settings:
#

# Protect files and directories from prying eyes.
<FilesMatch "(\.(engine|inc|info|install|module|profile|po|sh|.*sql|theme|tpl(\.php)?|xtmpl)|code-style\.pl|Entries.*|Repository|Root|Tag|Template)$">
  Order allow,deny
</FilesMatch>

# Don't show directory listings for URLs which map to a directory.
Options -Indexes

# Follow symbolic links in this directory.
Options +FollowSymLinks

# Customized error messages.
ErrorDocument 404 /index.php

# Set the default handler.
DirectoryIndex index.php

# Override PHP settings. More in sites/default/settings.php
# but the following cannot be changed at runtime.

# PHP 4, Apache 1.
<IfModule mod_php4.c>
  php_value magic_quotes_gpc                0
  php_value register_globals                0
  php_value session.auto_start              0
</IfModule>

# PHP 4, Apache 2.
<IfModule sapi_apache2.c>
  php_value magic_quotes_gpc                0
  php_value register_globals                0
  php_value session.auto_start              0
</IfModule>

# PHP 5, Apache 1 and 2.
<IfModule mod_php5.c>
  php_value magic_quotes_gpc                0
  php_value register_globals                0
  php_value session.auto_start              0
</IfModule>

                                                              23,1          23%
# Requires mod_expires to be enabled.
<IfModule mod_expires.c>
  # Enable expirations.
  ExpiresActive On
  # Cache all files for 2 weeks after access (A).
  ExpiresDefault A1209600
  # Do not cache dynamically generated pages.
  ExpiresByType text/html A1
</IfModule>

# Various rewrite rules.
<IfModule mod_rewrite.c>
  RewriteEngine on

  # If your site can be accessed both with and without the prefix www. you
  # can use one of the following settings to force user to use only one option:
  #
  # If you want the site to be accessed WITH the www. only, adapt and
  # uncomment the following:
  # RewriteCond %{HTTP_HOST} ^example\.com$ [NC]
  # RewriteRule .* [URL unfurl="true"]http://www.example.com/[/URL] [L,R=301]
  #
  # If you want the site to be accessed only WITHOUT the www. prefix, adapt
  # and uncomment the following:
  # RewriteCond %{HTTP_HOST} ^[URL unfurl="true"]www\.example\.com$[/URL] [NC]
  # RewriteRule .* [URL unfurl="true"]http://example.com/[/URL] [L,R=301]

  # Modify the RewriteBase if you are using Drupal in a subdirectory and
  # the rewrite rules are not working properly.
  #RewriteBase /drupal

  # Rewrite old-style URLs of the form 'node.php?id=x'.
  #RewriteCond %{REQUEST_FILENAME} !-f
  #RewriteCond %{REQUEST_FILENAME} !-d
  #RewriteCond %{QUERY_STRING} ^id=([^&]+)$
  #RewriteRule node.php index.php?q=node/view/%1 [L]

  # Rewrite old-style URLs of the form 'module.php?mod=x'.
  #RewriteCond %{REQUEST_FILENAME} !-f
  #RewriteCond %{REQUEST_FILENAME} !-d
  #RewriteCond %{QUERY_STRING} ^mod=([^&]+)$
  #RewriteRule module.php index.php?q=%1 [L]

  # Rewrite current-style URLs of the form 'index.php?q=x'.
  RewriteCond %{REQUEST_FILENAME} !-f
  RewriteCond %{REQUEST_FILENAME} !-d
  RewriteRule ^(.*)$ index.php?q=$1 [L,QSA]
</IfModule>

# $Id: .htaccess,v 1.81 2007/01/09 09:27:10 dries Exp $