MBP, external monitor and color profiles

I have been using my 17" MBP for editing photos with Aperture 2.01 and Nikon Capture NX. I calibrate the screen using i1 Display 2. Yesterday I bought a new 24" monitor hoping to use it as a second display for Aperture. Of course I calibrated it immediately after I hooked it up.
Now I have two color profiles, one for the MBP display and one for the new monitor. I correctly assigned them to the two displays. I set up the displays so that the MBP display is my main desktop (with the icons and the menu bar on it) and the external display as secondary.
The problem is, when fire up Aperture, colors are displayed correctly on the MBP display but they are over saturated on the external display. The same happens for other applications like Safari and Preview. However when I use Capture NX and Firefox, when I move pictures across the two monitor, I see the same thing (over saturation) but after a very short time (less than one second) the color changes to back normal.
I suspect that most programs like Aperture and Safari use the color profile for the main display and even though the windows is moved across to the 2nd display, the programs do not change to the right color profile. I see only Capture NX and Firefox are smart enough to change profile when windows are moved across the screens.
Is this normal or have I done something wrong?

Hi Lawrence
Please see these threads
http://www.flickr.com/groups/aperture_users/discuss/72157603938494562/#comment72 157603938917512
http://discussions.apple.com/thread.jspa?messageID=6607576&#6607576
http://forums.dpreview.com/forums/readflat.asp?forum=1017&thread=26790902
The Aperture Engineers are aware of this problem.
Mike

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