I just bought the Nikon D5100. As i was playing around with it i cannot figure out how to get the HDR to work. When I navigated to the HDR menu, it is grayed out. It says "This option is not available at current settings or in the camera's current state." I have tried every combination of modes and i still can't figure out why it will not let me into the HDR setting to turn it on. Any thoughts on why this is happening? What mode should i be in to turn HDR on? Should bracketing be on? Should i start in Live View first? I am not super interested on using the HDR feature all that often, but when i get a new toy i have to play around and figure everything out or it will drive me nuts. Thanks.