Joomla SEO friendly URL's cause register link not to work (1 - Joomla! Forum - community, help and support

after enabling "search engine friendly urls" , "use apache mod_rewrite" (i did change .htaccess before that) urls being converted seo friendly links "register", "forgot paswword", etc..) not working anymore.

for example, after having enabled, register takes `http://url/component/user/register` doesn't work

how can fix work enabled?

i attaching .htaccess file well:

code: select all

    ##
    # @version $id: htaccess.txt 21064 2011-04-03 22:12:19z dextercowley $
    # @package joomla
    # @copyright copyright (c) 2005 - 2010 open source matters. rights reserved.
    # @license http://www.gnu.org/copyleft/gpl.html gnu/gpl
    # joomla! free software
    ##
   
   
    #####################################################
    #  read if choose use file
    #
    # line below section: 'options +followsymlinks' may cause problems
    # server configurations.  required use of mod_rewrite, may already
    # set server administrator in way dissallows changing in
    # .htaccess file.  if using causes server error out, comment out (add # to
    # beginning of line), reload site in browser , test sef url's.  if work,
    # has been set server administrator , not need set here.
    #
    #####################################################
   
    ##  can commented out if causes errors, see notes above.
    options +followsymlinks
   
    #
    #  mod_rewrite in use
   
    rewriteengine on
   
    ########## begin - rewrite rules block out common exploits
    ## if experience problems on site block out operations listed below
    ## attempts block common type of exploit `attempts` joomla!
    #
    ## deny access extension xml files (uncomment out activate)
    #<files ~ "\.xml$">
    #order allow,deny
    #deny all
    #satisfy all
    #</files>
    ## end of deny access extension xml files
    # block out script trying set mosconfig value through url
    rewritecond %{query_string} mosconfig_[a-za-z_]{1,21}(=|\%3d) [or]
    # block out script trying base64_encode data within url
    rewritecond %{query_string} base64_encode[^(]*\([^)]*\) [or]
    # block out script includes <script> tag in url
    rewritecond %{query_string} (<|%3c)([^s]*s)+cript.*(>|%3e) [nc,or]
    # block out script trying set php globals variable via url
    rewritecond %{query_string} globals(=|\[|\%[0-9a-z]{0,2}) [or]
    # block out script trying modify _request variable via url
    rewritecond %{query_string} _request(=|\[|\%[0-9a-z]{0,2})
    # return 403 forbidden header , show content of root homepage
    rewriterule .* index.php [f]
    #
    ########## end - rewrite rules block out common exploits
   
   
    ########## begin - custom redirects
    #
    # if need redirect pages, or set canonical non-www to
    # www redirect (or vice versa), place code here. ensure those
    # redirects use correct rewriterule syntax , [r=301,l] flags.
    #
    ########## end - custom redirects
   
   
    #  uncomment following line if webserver's url
    #  not directly related physical file paths.
    #  update joomla! directory (just / root)
   
    # rewritebase /
   
   
    ########## begin - joomla! core sef section
    #
    rewriterule .* - [e=http_authorization:%{http:authorization}]
    #
    # if requested path , file not /index.php , request
    # has not been internally rewritten index.php script
    rewritecond %{request_uri} !^/index\.php
    # , request root, or extensionless url, or the
    # requested url ends 1 of listed extensions
    rewritecond %{request_uri} (/[^.]*|\.(php|html?|feed|pdf|raw))$ [nc]
    # , requested path , file doesn't directly match physical file
    rewritecond %{request_filename} !-f
    # , requested path , file doesn't directly match physical folder
    rewritecond %{request_filename} !-d
    # internally rewrite request index.php script
    rewriterule .* index.php [l]
    #
    ########## end - joomla! core sef section

any solution found