Microsoft has released new driver software for its keyboard and mouse products.
IntelliPoint 5.0 is for OS X 10.1 or higher and supports the following Microsoft peripherals: IntelliMouse Explorer, IntelliMouse Optical, Wheel Mouse Optical, Wireless IntelliMouse Explorer, Optical Trackball and the Trackball Explorer. It is a 6.5MB download.
IntelliType 5.0 is also for OS X 10.1 and above. It supports the Microsoft Wireless, Natural, Multimedia and Office keyboards. Microsoft's accompanying notes claim the software: "Provides full functionality for the keyboards." This update is a 4.8MB download.
The software is available from Microsoft's MacTopia Web site.