Can Rainbow effect be minimized with proper calibration? Because what I read in many forums is, not many people have spotted it. However considering myself an average joe, first time I saw a Tosh DLP I spotted it. A friend of mine spotted it on a Samsung on the showroom. Now both these are factory default settings. Watching Discovery HD, they were showing some AFrican Safari. I was able to feel some head ache/gidiness at times watching the TV. Did not happen in InHD or HDMovie NEt channels. Wondering if this is minimizable with proper calibration.