AirPort 3.1.1 Improves Performance and Compatibility -- Apple has released version 3.1.1 of the AirPort software, which includes version 5.1.1 of the AirPort Extreme Base Station firmware. Changes in AirPort 3.1.1 include performance enhancements between wired and wireless clients, stronger handling of multicast traffic on LANs, and better performance and behavior when using NAT and DHCP in the AirPort Extreme Base Station. We've also seen an anecdotal report in The Wireless Networking Starter Kit forum about the firmware update enabling a D-Link DWL G520 PCI card in a PC connect to an AirPort Extreme Base Station, which hadn't previously worked. AirPort 3.1.1 is a 7.8 MB download, available via Software Update or directly from Apple. [ACE]
Mac OS X Zip Expanding Utility
Firefox (and possibly other applications) may ask you what you want to do with .zip archives that you download from the Internet. If you want to expand them with Mac OS X (rather than StuffIt Expander), you may be unsure of which application actually does the job. You're looking for Archive Utility (in Leopard and later) or BOMArchiveHelper (in Tiger). In either case, the application is stored in Hard Drive/System/Library/Core Services/. Don't move it from there, though, or you'll confuse matters.