Avoid CarbonLib 1.5 if you're using 9.0.4. It caused hyper-senstive Finder behavior. Examples: single-clicking on icons would actually launch the file/application, click-and-dragging a window's title bar would actually window-shade them up or down, icons would not respond to clicks at all sometimes, etc. Very annoying. Reverted to 1.4 and all is fine.