I just upgraded my G4/400 to 1.4G of memory. I wanted to do that eventually anyway. It did NOT solve the limewire issue. Nothing else can be running or even launched while limewire is running. Like I said, I never had this problem before 10.2.2. Could something have changed with this update? I have an Powerbook 667, and a G4.867 and experiencing no problems with limewire.