Hi all. I've been giving the matter of rainbows some thought recently (now demo'd a number of DLP PJs with a variety of colour wheels and resolutions), and I have a question for you wise people. Is there any connection between the native resolution, and the effect of the rainbows seen? It seems to make sense to me that the physical size of the rainbow has to be related to not only the color wheel, but the precision of the light being reflected off of the DMD as well. So, given 1) an 854x480 panel and a 1280x720 panel 2) the same type/speed of colour wheel 3) the same size of output picture then I would expect significantly lower rainbow effect on the higher res PJ. This is because the total illuminated area for each pixel (given the same output picture size) is proportionally smaller, which should in turn reduce the area affected by rainbows. This seems to be backed up by a number of the threads reporting upgrades from X1/4800 to XGA panel PJs with 2x colour wheels (including Optoma 739, BenQ 6200, etc). Having said all that, I have not yet bought my first PJ, and I know that most of you reading this have a LOT more experience & knowledge about the matter than me. I would welcome your comments (even if they contradict me completely!). Neil.