Just started yesterday. iMac 2.8, 4GB ram, Leopard. I'm starting to have issues with certain animations and things not working. Examples: Dock - magnification just "stops" Mouse - Menu highlights don't highlight Dragging an icon can cause the icon to "stick" to the cursor, causing the need to relaunch Finder. A few others, but these are the main ones. Any ideas? Machine has been running perfectly otherwise, and these issues just started cropping up yesterday. Nothing has changed, nothing new installed etc.