Stock music player work only on S View Cover topic

I have a strange problem. I purchased my GN3 15 days ago. Since then I was using S View cover. 2 days ago I updated to Kitkat.via OTA. I decided to switch to normal back cover. To my astonishment it is not allowing to open the music player.:confused:
It won't work even when there is no cover at all:(
Anybody facing this?
Please try and let us know.

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