[Resolved]  Toshiba Laptop — Faulty product and poor service

I am varun goyal From delhi, India using toshiba laptop A300-D5310.
I had bought notebook on 01-june-2008 and i am facing a very big problem continously. I went to toshiba service center in noida (Toshiba Service Center), the id no. for the compaint is "54447" on 01-08-08.I visited service center again on[protected] with same problem .They had solved my problem but the problem occur again after every two months . The problem in notebook is that it turned off automatically after half an hour and full machine heats up. And the problem is increases with time.Now the DVD Writer is also not working.I can use my notebook only for 15 minutes after that it will turned off, because of this problem i already lost my pen drive and ipod, they got corrupted because of power off.The problem is occur again and i supposed to visited hcl toshiba noida on 24/11/2008 and my jobsheet no. is "48311516Q". They again serviced it and i met Mr. sandeeep there and he doesnot know how to treat with customers.I had words on phone with Mr. Alok, Mr. Anurag too, even they misbehaved with with me. finally i met Mr. yogesh at CP office . He promised me to take a action if problem occurs again. Now the prblem has occur third time so tell me wat to do now???
I hav already suffered so much agony it will be vry kind o[censored] i[censored] look in to the matter personally and get my laptop replaced showing the trust and standards of toshiba for which it is known worldover.
I already registered my compaint but there is no action taken so i m registering again.My previous