HITACHI LCD 32LD6600

[Dave99]

Hi All
            I have a 32Inch LCD Hitach32LD6600 B The problem i have is that after about 30 Min when it gets warn the picture breaksup into coloured lines the sounds ok. Not sure where to start looking.
If turned off and left to cool down it will work again for a while.
Can any body help please it's doing my head in. :wallbash:

Dave..