Dell Studio 1558 Display I.C problem

Hello sir/Madam

                My dell studio 1558 was an Display  I.C  problem from 8 months. I give that laptop to service point and repair, but once again that problem occured once again.Please tell the complete solution for the problem.please tell new price of this Motherboard.

                                                                                                                                                                                                                   Thank u,