Hi, ive owned my DVP 500S philips dvd player for around a year but i just noticed something, that when i press on the zoom button, it would enlarge the image, then i would press repeatedly until it shows the 1/2 size picture, it was then that i noticed that at the 4 sides of the picture, i was able to see parts of the general picture that dont show(are cut out) when the zoom is off, can anyone tell me if this is a malfunction with the player or the tv itself, i have heard about overscan, could this be the case? thank you.