As a newbie to the realm of color management, I am clawing my way up the steep learning curve. I indulge your patience & appreciate any help you can provide. I am using Photoshop Elements to post process my images on a MacBook Pro with an external NEC P221W display. The NEC has been calibrated & profiled using the proprietary SpectraView II puck & software. There appears to be 2 issues with which I could use some help. Issue #1: First I will process an image with PSE on the NEC display. If I drag the image (while still in PSE) to the MacBook Pro's built-in display, the colors tend to be over-saturated & often with a color cast. Is this a problem of the built-in display not being calibrated? Issue#2: Although I process my images in PSE, I organize & store them in iPhoto '09. If I open an image that I stored in iPhoto, the colors in the image are over-saturated regardless of whether I view them on the built-in display or the NEC display. My question is: what can I do to assure that images processed in PSE will retain the same color balance (if that is the correct term) in iPhoto? I assume that iPhoto is a color-managed application. If so, is there some tweaking that I need to do? And, thanks for your patience & any help you can provide.