Monitor calibration

Mongoose,
It's not Argyll that's 'at fault', but the type of profile you choose
A "Matrix" profile will not compensate for a poor black point on the display.
Using a "cLUT" colour look up table type profile will work wonders, but takes longer to produce.

Do also note that not all software can handle cLUT profiles. Some fall back to treating them like a Matrix profile. So your mileage may vary depending on the app you are using.

dispcalGUI is a very nice way to wrap everything up. It also includes the necessary startup process to load the profile on Windows etc

Matt