I've performed a calibration of my screen tonight. The last time was somewhere in early 2008, a while ago. My fear was that the Argyll calibration with the Spyder2PRO would not work as I've upgraded my computer to a 64bits environment.

Well my fears were miss-placed. It works exactly as I've described in an earlier post. Colors did shift a bit since last calibration more than one year ago.

I've also upgraded my Argyll to the latest version 1.0.3. This software works perfectly. The community owe a big thank to its author Graeme Gill.