Fairly new to Ipad and just purchased the Apple original Camera Kit comprising what I thought was a universal no prob adaptor, however when connecting the camera and then my Blackberry via the USB adaptor I get message x 2 that both device cannot be connected because they both 'Use Too Much Power' if this is an Apple ploy to prevent download from Blackberry I understand, but my camera is Nikkon and no where in the instruction kit does it mention what is not compatable, can anyone help?