i worked with turtlebot , ros hydro ubuntu 12.04 when i start rgbdslam: in the first terminal: roslaunch openni_launch openni.launch in the second terminal: rosrun rgbdslam rgbdslam i obtained a GUI interface, but there is no image!!!

after noticed that there is two openni launch files, one which was installed at first with as a driver of kinect and the other was installed with rgbdslam v2, but the two files are different, with which I have to work?

thanks in advance