Hi, Had to Factory reset my KD43X8305C TV as the TV function stopped working and a soft reset didn't cure it. After the initial factory reset, the TV turns back on and shows 'SONY' for a few seconds and then moves onto the 'bouncy ball graphics' for a few seconds, then turns off, back on and the word SONY appears again and then the bouncy ball graphics and then turns off and on again and just keeps repeating this process for hours - left it on overnight. Any ideas?