I found this very strange thing using my i1 Display 2 and Spyder 3 calibrators in Snow Leopard (since 10.6.0 to newest 10.6.3):
I use to automatically change the background image of my desktop in random order (from System Preferences) every 5 minutes.
As soon as I updated the OS everything was ok and every time I restarted my computer I found a new image on the desktop (like in MacOS 10.5).
Now, after calibrating the display with the i1 Display 2 or the Spyder 3, using software from Xrite and from ColorEyes, suddenly the picture is the same every time I restart the computer.
Basically, the randomization is ok, but the starting image is always the same, opposite of before I calibrated.
I know this is not related with problems of color calibration itself, but I am making some test here, to figure out what kind of setup is better for my studio and I also found another strange problem in my testing:
this morning I tested my V4 ICC support on the www.color.org
page and everything was fine (just after I updated to OS 10.6.3), but after calibrating the display, the result changed and now I have problems visualizing the test image in the website and on PDF file. I don't really know if this is related to the previous bug, but I think there is some problem in the color management pipeline that Apple must be aware of.
Hope this will go to the right people who can help better than me.