Album problem with Xperia S

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http://forum.xda-developers.com – I recently flashed .50 firmware, everything is smooth, even the autofocus problem got solved, but n the other hand, I can't see my pictures in the "Album" application, and my music in Walkman app. I rebooted several times but still my pictures doesn't appear. However I can see my pictures, music, and everything using ES File Explorer. please help me (HowTos)