Apple has released several updates to its printer drivers for Mac OS X 10.6 Snow Leopard. The updates include the latest drivers for printers from HP (version 2.4.1) and Epson (version 2.4). More information on installing printer software updates, including a list of supported printers, is available on Apple's Web site. (Free, 387.47/737.48 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.
HP/Epson Printer Drivers 2.4.1/2.4 for Mac OS X 10.6
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On a happy note, this update finally fixed a small issue I was having with my P1006 (where photos would print as if somehow magically down-sampled to 32 or 24 colors). Huzzah.
For simpler, third-party apps, I just make an archive of the current app and any prefs (although that file seldom changes) BEFORE installing the update. If things "go south" all I have to do is delete the new file and un-archive the old on. It's usually much, much more difficult to to use this method for SU stuff, files could be being updated all over the OS... ;-)