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Hi, for grappa.com I have about 2700 warnings of duplicate page content. My CMS generates long url like: http://www.grappa.com/deu/news.php/categoria=latest_news/idsottocat=5 and http://www.grappa.com/deu/news.php/categoria%3Dlatest_news/idsottocat%3D5 (this is a duplicated content). What's the best solution to fix this problem? Do I have to set up a 301 redirect for all the duplicated pages or insert the rel=canonical or rel=prev,next ? It's complicated becouse it's a multilingual site, and it's my first time dealing with this stuff. Thanks in advance.