My daughter has a 12" PowerBook which is loaded to the hilt - airport, bluetooth, dvd burner... It's a lovely little machine, but the logic board is showing problems, it is now developing the dreaded white spots on the screen, and also has a few "pops" at different intervals and has a bit of a problem waking from sleep. It goes in today to our I.T. dept for a look-see. Other than that, it works just great!!