When I edit htaccess file, cant sign in frontpage

[chopin2256]

I redirected my non-www domain name to the regular www domain recently. I did this successfully by adding this code in the htaccess file in the www root directory:

RewriteEngine on
RewriteCond %{HTTP_HOST} ^mysite\.com [NC]
RewriteRule ^(.*)$ [mysite.com...] [L,R=301]

BUT!

Now I can't sign into frontpage. It says:

"documents in this folder are not available. The folder may have been moved or deleted, or network problems may be preventing a connection to the server. There is a problem with the web server. Please try again later or contact the server administrator"

If I delete the above code from the htaccess file, I can sign into frontpage with no problem. Is there any way to fix this? (by the way, I get the same message when I use hotlink protection...really weird)

The whole htaccess file looks like:
----------------------------------------------------
# -FrontPage-

IndexIgnore .htaccess */.?* *~ *# */HEADER* */README* */_vti*

<Limit GET POST>
#The next line modified by DenyIP
order allow,deny
#The next line modified by DenyIP
#deny from all
allow from all
</Limit>
<Limit PUT DELETE>
order deny,allow
deny from all
</Limit>
AuthName www.mysite.com
AuthUserFile /home/mylogin/public_html/_vti_pvt/service.pwd
AuthGroupFile /home/mylogin/public_html/_vti_pvt/service.grp

<Files 403.shtml>
order allow,deny
allow from all
</Files>

RewriteEngine on
RewriteCond %{HTTP_HOST} ^mysite\.com [NC]
RewriteRule ^(.*)$ [mysite.com...] [L,R=301]
------------------------------------------------------

Any help would be appreciated, Thanks!

[jdMorgan]

Yes, let's all get together here [webmasterworld.com]. These problems are similar if not identical.

Jim