Nikon 17-55mm f/2.8G ED-IF AF-S DX Zoom Lens "sb800" Questions

...that one! I just bought the Nikon 17-55mm on ebay, and it seems that when I use it with my D2H and SB800, the SB800 stays on 40mm mark all the time, no metter what focal length I zoom into. Also, ...

...that one! I just bought the Nikon 17-55mm on ebay, and it seems that when I use it with my D2H and SB800, the SB800 stays on 40mm mark all the time, no metter what focal length I zoom into. Also, ...