Images taken in Multi Exposure Mode with the Nikon D7000 camera open in Camera Raw 6.3 or Adobe Photoshop Lightroom 3.3 with a strong color cast. The color cast is often magenta.
Solution: Update to the most recent version of Photoshop Lightroom.
Choose Help > Check for Updates in Photoshop Lightroom, or manually download and install the update by going here: www.adobe.com/downloads/updates.
The D7000 applies a white balance to images that are shot in Multi Exposure Mode. Camera Raw 6.3 and Photoshop Lightroom 3.3 don't register this pre-applied white balance, so they reapply it, resulting in a color cast. This issue is fixed in Photoshop Lightroom 3.4.