xf86config
: Mouse setupPATH
rightPick the mouse type from the menu and enter the name of the device to which mouse is connected, as directed.
If you are using an OS (e.g. SVR4, SCO) that has a built in mouse driver that the Xserver could use, you'll need to edit the XF86Config file to setup your mouse, so just pick any mouse from the list and press enter when asked for the device.
If you don't know which protocol your mouse uses, you'll just have to guess (the xf86config program will give you some hints as to which might be most likely) and then see the troubleshooting section if it doesn't work when you run the server.
The xf86config program has not been updated to allow you to select the latest mouse protocols, so you may have to edit the config file by hand after xf86config has finished.
xf86config
: Mouse setupPATH
right