Previously this HOWTO explained how to use static UDEV device nodes to use mice in XOrg. The evdev driver in XOrg 7.1 no longer supports this method, or any method of altering the original device files. The original device file must be used. Using the old method will cause /dev/input/eventX files to come up missing and will cause errors when XOrg tries to call the mouse either by Name or Device ID. Revert any changes made to /etc/udev/rules.d/010_local.rules by commenting out the added lines or deleting the file, then restart UDEV by: