I brought a Panasonic FX9 a few days ago, and I started taking a few pictures, until I realized that there were some pink stripes coming down from the light source, which was the sun outside the window. When I tried taking pictures at a different angle, the pink stripes weren't there anymore. Half the time they are there, half the time there isn't. According to my friends, it is actually the light sources 'fault' and there is nothing wrong with the camera. Is this true? And if it isn't, what should I do? Please help!