Thanks to Keith Furman for the tip: Hot on the heals of last month's IntelliPoint 2.2 software comes a minor upgrade, version 2.2a. It doesn't say so (in fact there is no documentation at all), but I believe this upgrade was released specifically to support Windows 98. It does work with Windows 95 and Windows NT 4.0 as well, however. The 1.3 MB download is available in a variety of languages from the Microsoft Pointing Devices Web site