I am trying to calibrate my monitor for the first time using Datacolor Spyder4 Pro. It tells me to set brightness and contrast, etc. settings back to factory. I reset them to factory defaults, then went through the calibration process step by step. It finished the profile giving me a gamma of 2.2, whitepoint 6500 K and brightness at 180. At the end it shows that I have about 98% sRGB colors but only 76% RGB. I am a professional photographer and edit in the RBG 1998 color space all the time. The profile that Spyder set for me makes the left (white) end of the spectrum look very dull, nowhere near white. I looked up a color chart to see if I could see the range of colors (black/white) okay. I can distinguish all the different boxes of shades from one end to the other with the exception of the pure white and pure black ends. The last two squares on each end are almost indistinguishable. I am concerned also about the 76% RGB not being enough for my color photo editing.
Is this something that is standard with this monitor and I am stuck with the 76% range, or is there something I am missing in the calibration process?
Any help you can give me will be greatly appreciated.