[Resolved]  Samsung Mobile S3310 — pc studio not working/download problems

I bought samsung mobile S3310. As such its good one in that price range with 8gb memory card support. I put 256MB mc which was with me. I find the mobile is not responding sometimes while disconnecting the call. even after pressing the hang on button, still the line was connected and eats aways some more buks. I tried the pc studio to access my files. But is not working . when i download from samsung website, i got the soft ware but whenever i try to open, an NPS error comes and program terminates on its own. Samsung, being an international brand, should resolve such small issues.I can approach the service center of samsung, but its sucking to approach any service center with new product in hand, , , we must be prepared to leave our product with them for any updation or repair...anyone pl guide...the best way to resolve this issue...thanks in advance