February 23, 2006
Info palette numbers do not update or display when you move a curve point (Photoshop CS2 on Windows)
Source: Photoshop Support Knowledgebase
Issue: When you use the cursor keys to move a curve point in the Curves dialog box in Adobe Photoshop CS2, the RGB and CMYK numbers in the Info palette do not update or display.
Solution: Use the mouse instead of the cursor keys to change location in the image.