Question: I upgraded Photoshop 7.0 to Photoshop CS2 9.0 and found that the link icon to the right of the eye icon in the "Layer Palette" for linking layers is gone. What's going on?
Master Dong: Versions before Photoshop CS2 9.0 had a layer link selection box. Photoshop CS2 9.0 has improved it. The first icon in the first row at the bottom of the "Layer Palette" is the "Layer Link" button. To link layers, first hold down the Ctrl key to select the layer you want to link. After selecting, click the "Layer Link" button to link (or right-click the mouse, there is also a "Link Layer" command above).