Samsung DynaFlat TX-R2035 TV "second challenge ideas" Questions

...ideas? TV WILL NOT STAY ON. WHEN YOU TRY TO POWER UP THE RED LIGHT INDICATOR WILL NOT STAY ON. IT FLASHES AND GOES OFF AFTER 1 OR 2 SECONDS.. I'VE RESET THE POWER STRIP I'VE CHECKED ALL CONNECTIONS ...

...picture seemed to drop about 4" so now there is a big black area at the top of the TV. This is the second time it happened. 3 years ago we got it repaired but unless I can do it myself it isn't