This is the first I've seen of white dots being caused by a blu-ray player. Have you tried a different cable, switching HDMI ports or changing the output resolution on the player?
I have a LG LCD tv (1080) and recently purchased a samsung (bd-c6500) blu ray player. hooked up by hdmi cable. there is a very frequent flashing on the screen and small white dots when the screen is black. doesnt start right away, but a few moments after the blu ray comes on, it begins. has there been a consensus as to what the problem is? I see similar complaints, but no real resolution...