[Resolved]  Nokia N72 — In built Music player problem!

I bought a brand new nokia n72 in april 2008 with a 1gb ncp memory card from m/s sun times, jayanar bangalore.! Immediately after two weeks the phone started hanging and the music player stopped displaying any songs in the card as well as phone. When i contacted sun times, the person who sold the set replaced the memory card without thinking twice.. This shows the quality of the card which was provide.. Later after using for a few more weeks the same problem started repeating.. Again the card was replaced wit another card of a different brand on my insistance.. After 1.5 months the same problem arised. I then visited the nokia care who suggested i buy a branded memory card.. I bought a kingston card right away.! Now a few weeks back the same prob has repeated and the music player is not showing any of the tracks on the card as well as phone memory.. Im pretty sure tat this is the phone's prob cuz the card has been replaced 4 times and formatted 9 times.. Neither sun times not nokia care is ready to solve the prob.! Please i beg u to help me.! Im fed up of running all over bangalore to rectify this prob..