Apple late Thursday posted iMac Software Update 1.3 for Leopard (21.6MB) and 1.2 for Tiger (13.3MB). The fix applies exclusively to 2.0GHz, 2.4GHz, and 2.8GHz aluminum iMacs and is officially said only to apply "important issue fixes" for the affected systems. Previous updates for the new iMacs have primarily focused on video drivers relating to
