Thanks for the post. Even after throwing the reciept away, the installer still refused to continue. I gave up and bought a newer version (4.10.5) of Limewire Pro and it works now. That really dissapointed me ( you could tell from the rant ) as the one I had (so it was a year or so old - I didn't care ) worked fine until Apple updated whatever they updated. Thanks again for offering help so readily.