I am having the same problem. I installed Panther yesterday, ran Software Update afterwards as they suggest, & am now running OS 10.3.6 on a G4. I have the latest version of Limewire for OS 9 already installed & it's in the OS 9 Applications folder. I have tried downloading Limewire for OSX several times using both Safari & Internet Explorer as well as both download sites. In Safari, the status bar in the download window gets stuck & stops tracking the download. The download completes though, but the image in the Safari download window now has "Mounting Failed" underneath. In Internet Explorer the download went more smoothly but once again the disk image wouldn't mount when clicked & a warning window opened saying, "LimeWireOSX.dmg no mountable file systems" Is this Ashcroft's parting gift to file sharers ??? ;-)