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Server error!
The server encountered an internal error and was unable to complete your request.
Either the server is overloaded or there was an error in a CGI script.
If you think this is a server error, please contact the webmaster.
ERROR 500
Probable Causes
3. Apache is configured to disable mod_rewrite.
Possible Solutions
3. load mod_rewrite module, to do so just open "httpd.conf" and find this line :
#LoadModule rewrite_module modules/mod_rewrite.so
and uncomment it by removing # so that it becomes like this:
LoadModule rewrite_module modules/mod_rewrite.so
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now the rewrite engine should work properly, I'm adding this solution because for so long, i've tried to run sNews using appserv and didn't succeded, because the defaut installation disables mod-rewrite. I hope this will help you out.