The upper graph is a correct response, but the bottom one shows you have an internal monitor turned on in the soundcard. Notice that this second graph shows a mirror of the microphone calibration file? Monitor mode is a feature of a soundcard that allows a person to listen to a CD while it's being recorded. It needs to be off for REW use . Look in the soundcard application to see where to do that.
When you display a graph, use a vertical scale of 45dB-105dB and a horizontal scale that starts at 15Hz and ends where you want it. This would be consistent with the standard we use to keep consistency between everyones graphs..
brucek