How many files are you sharing? That can make a difference on the speed of Limewire. I used to try to share a couple of thousand mp3 files and it was as slow as molasses in updating Limewire windows and button clicks and loved to show the SBBOD. This happened with various version of Limewire Pro. When I only shared about 500 files, any Limewire version worked fine. No SBBOD. Limewire is still rather slow on my G3 500 MHz Beige with OSX.1.5, but certainly useful. I really think both our machines are underpowered, but I've heard slowdown problems by people with 867 MHz G4s and a lot of RAM.