Mousey, Mousey, Mousey

My mouse has decided to play up. Not sure if it's the mouse, the KVM switch or the fact that the table surface is too shiny. Hopefully it's not the KVM switch as I don't want to have to replace it right now. If it's the mouse, that's an easy fix, I think I can probably find another one lying around somewhere. If it's the table, that's an easy fix too, all I need to do is find/make a mouse pad. If it's the KVM switch that will be a problem. I wonder if it's still under warranty.