Less than two weeks after the release of Mellel 3.2 (12 June 2013), developer RedleX has released Mellel 3.2.1, which fixes compatibility issues with Mac OS X 10.5 Leopard. The word processor update has also restored support for automatic baseline shift adjustments for MathType equations and features smarter application of default languages with new documents. ($39 new from RedleX and the Mac App Store, free update, 105 MB, release notes)
Improve Apple Services with AirPort Base Stations
You can make iChat file transfers, iDisk, and Back to My Mac work better by turning on a setting with Apple AirPort base stations released starting in 2003. Launch AirPort Utility, select your base station, click Manual Setup, choose the Internet view, and click the NAT tab. Check the Enable NAT Port Mapping Protocol (NAT-PMP) box, and click Update. NAT-PMP lets your Mac OS X computer give Apple information to connect back into a network that's otherwise unreachable from the rest of the Internet. This speeds updates and makes connections work better for services run by Apple.