Hai
Do you have the mouse plugged into the correct PS/2 port?
On a desktop Mboard, it's the one closest to the Mboard and the outside of your case. It probably won't work in the other one, although there are a few older Mboards ( e.g. some made by Intel ) where the mouse or keyboard will work in either port.
Most laptops have a single PS/2 port that is wired such that it can be used for either a PS/2 mouse or keyboard if you need to use both, there are standard Y wiring adapters that will allow you to connect and use both.
You can always use a USB connected mouse, or a serial port connected mouse instead.
12candyman
