I just discovered this iSync (3.0) problem with Leopard: I ran iSync. I got this message: iSync can't open because of a problem with a plug-in. The following plug-in does not work with this version of iSync: SEW300i.phoneplugin This is the plugin (which I got from http://blog.joelambert.co.uk/?p=135) that I use to sync my Sony-Ericsson W300i with my G4 Powerbook. It worked perfectly under Tiger...... Has anyone found out a fix? regards, Trevor