Some machines have difficulty recognizing serial mice. If this is the case on your machine, try one of the following:
1) Disable Plug and Play (PnP) in your BIOS.
2) Set PnP to manual, and then make IRQ 3 and 4 „LegacyISA“ instead of PnP PCI Auto.
Your BIOS may have different terminology to the above, but you should be able to figure it out.
Remember to write down the changes you make so you can go back to the original settings if necessary.