Well, there aren't really any concrete "tests" to confirm. You would have to just play around with the settings and try to get the best possible picture. If it's not possible to get a good picture no matter what you try, then there might be something wrong with the hardware. But usually it's just that the settings are wrong.
- Try to find discussions where other users have stated their settings with this monitor, and start from there. It won't necessarily be perfect, but it should be a fairly accurate point to start, so you can finetune from there. Here's one from an actual review site:
http://www.tftcentral.co.uk/reviews/content/eizo_fg2421.htm#calibration --- If you haven't already, you should probably read the whole review to get some further insight of the ins and outs of your monitor.
- Here's one link where you can try to further calibrate/finetune the monitor by your own sight:
http://www.lagom.nl/lcd-test/ --- Not really as good as professional hardware calibration, but should suffice for consumer grade usage.
- Also remember that the colors aren't supposed to "pop", even though some people like it. If you have even a fairly mediocre camera, you should take a picture of something colourful on your surroundings. Preferably the scenery outdoors (with some random objects here and there), so that the room lights won't conflict with the light output. After that, try to set the colour settings so that the image and the reality are as closely matched as possible. Also make sure there aren't any color effects or "filters" enabled in the camera.