Hi I'm having problems with my one month old Philips Cinema Gold TV (50PFL7956H/12). Sometimes (3 to 4 times a week), when I turn the TV off there is no picture but there is sound, I can hear anything perfectly and I can also see the ambilight working. The only thing that works is to turn it off, unplug it for a couple of minutes, plug it back in and turn it on. This morning I had to repeat this procedure twice to get a picture.

My TV is running the latest firmware 014.079.

Is this a known problem and is there anything to do about it?