Missing Drivers (?)

I have an Acer Aspire One D257 and it appears to be missing three drivers that I cannot find anywhere on the internet. When I click on "Update Driver" in the device manager no drivers are found either. I've downloaded every driver listed on the Acer website and still no luck. I'd prefer not to pay for a registration to a website that claims it can update all drivers "at the click of a button."

The missing drivers are as follows:

                                    Ethernet Controller (Location: PCI bus 1 device 0, function 0)
                                    PCI Device (Location: PCI bus 3, device 0, function 0)
                                    Video Controller (Location: PCI bus 0, device 2, function 1)

All devices state that "The Drivers for this device are not installed. (Code 28)

Any help will be greatly appreciated.