Hello. I can't see mobile version for my site, m.mesterulvasile.ro
I have in .htacces:
RewriteCond %{HTTP_HOST} ^mesterulvasile.ro$ [NC]
RewriteRule ^(.*)$ www.mesterulvasile.ro/$1 [R=301,L]
after RewriteEngine On

I have, also, in .htacces
########## Begin - Joomla! core SEF Section#RewriteCond %{REQUEST_FILENAME} !-fRewriteCond %{REQUEST_FILENAME} !-dRewriteCond %{REQUEST_URI} !^/index.phpRewriteCond %{REQUEST_URI} (/|\.php|\.html|\.htm|\.feed|\.pdf|\.raw|/[^.]*)$  [NC]RewriteRule (.*) index.phpRewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization},L]########### End - Joomla! core SEF Section

I have Artio joomsef installed.

Do you have any ideea why is not working?

As there is no X-Powered-By header, it looks like redirect is triggered by Apache's httpd.conf or .htaccess. Check both for possible redirects.