I'm having problems installing limewire Pro. I can download it no problem but when i double click the "double click to install" icon, it kind of 'flashes' twice and then nothing. I've tried pretty much all the fixes suggested in the forums but to no avail. I use an ibook G4 with osx version 10.4.3. & Limewire basic worked fine for about 3 months-ish prior to upgrading. Can anybody help?