Apple has released ProKit 5.1 (Leopard and Snow Leopard), an update to operating system-level components shared by the company's professional and semi-professional applications (Final Cut Studio, Final Cut Pro, Motion, Soundtrack Pro, DVD Studio Pro, Aperture, Final Cut Express, Soundtrack, Logic Pro and Logic Express). Addressed in ProKit 5.1 are improper scrolling behavior, memory leaks, and the "layout of interface elements in certain application alert windows." (Free update, 32.39 MB)
Smarter Parental Controls
If you've been using the parental controls options in Mac OS X to lock your child out of using a particular computer late at night, but would like to employ a more clever technique to limit Internet access, turn to MAC address filtering on an Apple base station.
To do this, launch AirPort Utility, select your base station, and click Manual Setup. In the Access Control view, choose Time Access to turn on MAC filtering. You'll need to enter the MAC address of the particular computer, which (in 10.5 Leopard and 10.6 Snow Leopard) you can find in the Network System Preferences pane: click AirPort in the adapter list, and click Advanced. The AirPort ID is the MAC address.