Hi htkaki, thanks for your fast support and also your friend for letting me trying out the projector at his home. At first I'm worried about the rainbow effect but after a while of watching it, I hardly notice it unless I purposely go and look for it. Overall the projector is great, it is bright enough, and the quality is HD when connect to PS3 and even to PC via DVI-HDMI cable. BTW I PM you the warranty card information already, Thanks.