Just read this on Ken Rockwell's D700 Review
"I suspect this is a design change rather than a bad sample, but the rotary power switch is too stiff trying to turn on the illuminator. My other Nikons, from F100 to D300 to D3, all do it with an easy twist, while my D700 requires an inconvenient and significantly more difficult push to turn it on. Worse, as someone who shoots many different cameras, it's important that they all feel the same. With the D700, when I hit it and nothing happens, I need to remember that "Duh, I'm shooting the D700 so I have to hit it harder."