samsung le37m8 picture fault

[gateshead]

hi guys i have a samsung le37m8 with a faulty picture. when the tv has been on for 10 minutes or so it sort of morphs into three images then goes black. if i leave it or squese the screen the picture comes back. i have replaced two caps on psu that were bulging. i have seen i vid on youtube on a plama with same problem the guy fixed it by replacing tcon board could this be my problem. appreciate any help tips or advice. cheers kevin