I have a New MAC book 2.16 about 4 months old which I purchased in a military exchange and now sits collecting dust here in Africa. The list of problems I have had: keyboard will pause giving a slight delay in writing, safari closes unexpectedly, freezes often resulting me using the power button to restart, sometimes after it has been restarted the folder with ? shows up. Then I will have an application open and it will not respond to quitting, also when I try to open an application it bounces in the dock requesting force quit. I run Leopard Cache cleaner and Onyx which clears the problems up for sometime. I gave Apple support a call but the connection is not the greatest even with an AT&T calling card. I am open to suggestion and welcome any advice. Thanks DS.