I have been using mac for about 1 year now and it recently started acting up when using the internet. It used to be lighting fast. 1. Very slow opening pages. 2 many times get unable to open message. keep reentering and finally it works. 3. When playing poker on facebook continually get kicked off because it doesn't read my button push. Fire up my old toshiba on the same connection and everything works fine. Any disc clean up options or other suggestions will be greatly appreciated.