I'm seeing the occasional rainbow on my new W1000, and I never saw them on my HD1000. I'm wondering why, because they both are supposedly a 4x speed. Projector Central has no speed listed for the W1000. Has anyone seen in writing that the W1000 has a 4x speed? Maybe it's a 3X speed like the Vivitek. I remember a few years ago, the Benq 6200(I think) was advertised as a 4x speed, but it turned out to be 3X. I wonder if Benq did it again.