I'm playing avi files from a usb on my 37pfl4606.

Ordinarily they're fine, but during scenes of inactivity, the screen automatically zooms in on the centre of focus or character. For example if there's a lingering shot on a character, the screen will jump in on the face, and exclude the rest of the shot.

Is there a way around this. I have the picture setting to 'unscaled', not auto zoom.

Would appreciate some help!