To determine whether you have a serial or PS/2 mouse and the resources that it is using:

• Click on "Start"
• Click on "Settings"
• Click on "Control Panel"
• Click on "System"
• Click on "Device Manager"
• Double click on "Mouse"
  • This will tell you what type of mouse you have
• Double click on the mouse type and then Resources tab
  • This will tell you the resources that the mouse is using