I can't seem to figure this on e out. I have an object that I've attached a diffuse material and a black box emitter. I assigned an envelope to the emitter's power setting to have a kind of blinking light. Everything looks great when I'm setting up the scene and looking at previews in the IPR. As soon as I hit F10 to render the sequence, I seem to loose the envelope settings. That is, If the render sequence starts with the light off, it stays off for the entire sequence. If the render sequence starts with the light on, it stays on for the entire sequence. I get the same results whether I'm using a black box or texture emitter on the object.
Any ideas? Thanks in advance.