Hi guys I'm hoping someone can give me some quick advice. I own a Samsung UE40D6100 LED and over the past week I've had a couple of problems. 1. Concerning sound coming from the screen. This sound is coming from the screen, not speakers as these are not in use. It is a fairly high pitched "electrical" sound. So hard to describe a sound. It isn't a single tone, perhaps "jingly" would be appropriate. The sound lasts for a period of 30-60 secs, and is reoccurring. 2. Two marks have appeared on either side of the screen. A dimming of the screen in two distinct spots. The screen has not been moved so it isn't due to physical damage. I've uploaded a picture, but it is hard to get a decent picture of the screen. One on each side, and they are more or less horizontally lined up. Approx 1.5 inches from the top. Any suggestions would be appreciated. Many thanks.