first off please don't kill me. As I'm this close to getting a DLP benq6200 in US. I have a worry. I've only seen rainbows on the THX aspect optimiser, and some colour separation on Nick Cages suit in matchstick men. Could have felt a bit of eyestrain but I may just have been tired. This on a business unit from work. Even if you don't see rainbows, you may get headaches, if you don't get headaches you may feel nausea, if you don't get nausea you may get eyestrain. Which brings me to the point.... I am afraid that this sequential colour technology could be bad for your eyesight even if you have no strong reactions, based on the fact that it causes difficulty for some and therefore is physiologically not-a-good-idea even if you are not so bothered. Can't find anything on this possibility anywhere Can anybody put my mind at ease?