Google Now cards not working

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http://forum.xda-developers.com – I have Samsung galaxy S3. I have activated Google now on device . Research and News cards never show up on my S3.I am trying it from last so many days, it never worked. I have tried everything (turning web history on/off, turning google now on/off, reset device.. ) Few days back I got my nexus 7 and cards shows up there. I tired having same setting on s3 as nexus 7. Î deleted web browsing history again, but after two days News and Research card started showing up on Nexus 7 but not on S3.. Please advice..:(:( (HowTos)