I HAVE A HITACHI 50HDT55 PLASMA TELEVISION THAT IM HAVING TROUBLE WITH. AFTER WARM UP I GET COLOR BLOTCHES ALONG THE TOP OF THE SCREEN AND WAS WONDERING WHAT CAN BE DONE TO MEND THAT. THIS IS ONLY AFTER ITS COMPLETELY WARMED UP,UNTIL THEN ITS OK. ANY HELP WOULD BE APPRECIATED.
THANKS!

STEVEN ROGERS, October 2009