Just spoken to a Laptop Technician, he says you will have to right click on the Unknown Device, choose the browse the Driver CD, go to the Chipset folder. There should then be a file named something along the lines of "945", please chose this file to install. The Unknown Device should then disappear from the list
Right clicked, went to update driver, then browse my computer for driver software and it allows you to only select a folder and could not find the file 945.inf in the folder.
Right click on "Unknown device" -> "Update Driver Software" -> "Browse my computer for driver software" -> "Let me pick from a list of device drivers on my compute"r -> "Next" -> "Have Disk" -> "Browse" ->" Driver\01_Chipset\1020\All/945" - > "Next"