My Samsung Pixon screen freezes quite often & just doesnt respond. After a few minutes it work again. This happens frequently. This seem to be a common problem with this model. Can someone give a solution for this?

The problem is a faulty contact from the touchscreen leading to the phone board. To be short: on the right side of the phone were the volume buttons are, under the touchscreen is the screen's contact. Try "detaching the screens face a little from the phone body exactly at the volume down button(using ur fingernail or something) and see if the touchscreen is responding in anyway. IF this is your case too...I suggest get a screw-driver and open the chassis, and trying to make the connection permanent, somehow.PS: you can send it back to warranty of a repair phone shop, only to force you to buy a new touchscreen and pay for the repairs, on a 99% working phone, with a faulty contact. The choice is yours:)
Good luck