i play only in SDTV, tested VGA a couple of times. had a scare of 3RL recently. i think the GPU have to work just as hard for SDTV resolutions.

many ppl are speculating the flexing of the motherboard and the falling solders is the culprit lar. but many common stories go like this, owner seldom play, then turn in on once in a blue moon and BAM- 3RL! TS, hopefully ur set can be fixed with X-clamp replacement.