unsatisfactory service HP Compaq, Compaq Presario Laptop Complaint

i have bought a laptop compaq presario CQ62 27-07-2011. after 10 month there was display problem in laptop. i went to service centre to solve the problem. but after 10 days of delivery the problem occurs again.
then i went to again service centre, after delivery the problem occurs again. now after the two time the gran. of laptop has finished.