Having spent the summer watching Star Trek TOS with my kids, we have started the Next Generation. They have three questions - none of which I can answer. (1) Why did Denise Crosby leave Star Trek (2) Why didn't they keep Dr. Pulaski? (3) If Picard is French, why does he have an English accent? As always, your answers are greatly appreciated and make me, in the eyes of my kids, look smart!