Nokia — display

I am using a Nokia N82,i bough it 2 years back,For the last few months shades or lines of calender which i am using as screen saver is appearing on diaplay,its there on gallery when i review images and worst is it appears on videos,which deteorates video quality,i went to nokia care,but they havent been able to identify the problem,they are not sure whether its display error or processor complaint,I am terribly upset about this,Pls provide me a solution.Details given below;

Mobile - N82(25.01)
Firmware Version - V 35.0.002
RM - 313
IMEI - [protected]

Hi,

Sorry to hear about your experience. Please write to us on [protected]@ovi.com and provide us with the following details

1. Contact Number
2. Your Location
3. Device IMEI number.

We will have someone from the team connect with you. Please mention your name on subject and add your contact in the email.

Do include the complaint link in order to speed up the process.

Regards,
Team Nokia India.

Locating a Nokia Care Centre (NCC) is very Easy !
SMS “NCC<space><City Name>” & send it to 55555, within few seconds you will receive the list of NCCs in that city.