Microsoft Input Devices The Microsoft Intelli-Drivers mess
Many people have advised me to avoid IntelliType 5.0 and IntelliPoint 5.0 drivers like the plague. Unfortunately, installing the Intelli drivers from the Microsoft CD will install Microsoft Bluetooth drivers, which break the Widcomm driver installation. Without the Intelli drivers you will not be able to use the extra buttons on your keyboard or mouse. The solution? Install an older Intelli driver! All the other wireless keyboards and mice produced by Microsoft have the same or very similar additional keys to the Bluetooth mouse and keyboard.
Where to get the older Intelli Drivers
From Microsoft:
IntelliPoint 4.12
IntelliType 2.22