I upgraded my 15TiBook to 10.3.1 and clean installed the same on a single G5; Where is the claimed speed increase? EXAMPLE: in Jag, I used to scroll through picture folders in the Finder and see EACH picture (~600K size) 'fly' by while holding down an arrow key. This may be a picky point, but was a GREAT show of speed in OSX. In Panther, it takes ~one second to show a jpeg preview! - forget scrolling. Is this an algorythm left out in the new Finder, I can't imagine it's the OS? (b.t.w. it does this on both computers mentioned above). Any ideas welcomed how to fix this, or if your experiences are different.