Battery Grip ist D

[Charles Wilson]

I just have got the battery grip for the ist D, it looks and feels 
wonderful.  I have a couple of questions though.  Does the switch on the top 
of the camera have to be on and the switch on the bottom of the grip have to 
be on for it to work.   The controls on the battery grip don't work without 
the control on top of the camera being set to on.  Not sure if this is 
normal or a fault in my unit.

Regards

Charles Wilson
Sydney, Australia