In order to fix the issues, I suggest you download and install the latest drivers available from the official web page. The latest drivers are fully compatible with Windows 2000, Windows XP and Windows Vista. If you still have issues, right-click the Computer icon, select Manage and open Device Manager. Expand the Mice and other pointing devices list right-click on the driver and select Uninstall. Reboot your computer connect the SilverCrest OM 1007 device and reinstall the driver.