The i1 has a diagnostics utility to check the dispositive. Have you tried it?
(Gustavo from a rather sunny Madrid)
I had to opt for the Easy calibration on my Apple Cinema Display as well. Vastly different results between the 2 calibrations.
Thanks; I guess I'll keep using Easy Calibration.
Also (following Gustavo Sanchez's suggestion), I did find the diagnostics utility on the i1 disk, and ran it. I wasn't sure what to make of the results, except that the profile using Easy Calibration "passed," and my more recent "Advanced" calibration failed.
It was an extremely frustrating process trying to know if indeed this was the way to calibrate this monitor, and after spending so much time and research was all I could come up with. Did you notice the graphing results of both types of calibration? The red (I believe it was) of the RBG graph line was not lined up at all with the G and B thus the weird color on the monitor, and with the Easy mode, they were at least in line, more or less.