Trying to find a battery grip/ vertical shutter release for my Nikon D3000. Ordered this one: Battery Grip 4 Nikon D40x D40 D60 D5000 D3000+2 EN-EL9A - eBay (item 280475663550 end time Apr-07-10 15:29:05 PDT) However, when the unit arrived, it will not fire vertically and horizontally without making a switch on the unit AND in the menu within the camera. The seller says, " Nikon didn't ever want to sell a grip for these cameras, there is NO way for the grip to trigger the shutter by communicate with camera directly. So you will not able to find any grip on the market can do what you need". Is this true? I will be disappointed if this is so. Any light on the subject is appreciated.