Samsung WS32Z10R 32" with diagonal gre...

Can anyone help me. We have a 32" widescreen tv which hasrecently started showing diagonal green lines across the screen. Theseare there permanetly but you cannot always see them, some channels theyare very faint to hardly there, other channels they are very clear. Wedon't know if we can get rid of these permanently or whether the tv isbroken in this respect. We have a perfect picture otherwise.

If anyone could give me some advice on what might be wrong or how thiscan be repaired would be very greatful. It is a Samsung 32" widescreentv

A photo can be seen at the following link:

http://img.photobucket.com/albums/v409/dimplesds/photo158.jpg

Thanks!