LG M3201C 32-inch FLATRON LCD

I HAVE LG 32 INCH FLATRON LCD MONITOR,  SOMETIMES DOESEN'T POWER UP, I HAVE TO TURN IT UP ON-OFF 8 OR 10 TIMES... THE RED COLOR STANDBY LED IS NOT WORKING , ONLY WHEN THE DISPLAY IS ON,  THE SMALL GREEN LED VISIBLE... WHAT COULD BE THE PROBLEM???