I have a mouse working with all versions of Puppy. It is the Microsoft Basic Optical Mouse, available in the market for about 10+ USD and it works fine with USB port and with an adapter supplied with the mouse in the PS2 port too. All of the buttons and scroll wheel ae functioning better than the ordinary Ball Mouse with Scroll Wheel. Check it up.
![Very Happy :D](./images/smilies/icon_biggrin.gif)