I have had countless Macs. My newest is giving me some problems now. Everything was fine ... I was somewhat of a slacker on software update .. I did a whole host of upgrades at one time ... after that ... slowness set in. It takes a good while for the login screen to load ... after logging in .. it takes FOREVER to be able to use (5 mins) any ideas? I have run Verify / Repair disk permissions ... It seems waking from sleep sometimes forces a battery pull ... once everything is going, it seems to be ok 80% of the time.