When I first built this computer 2 years ago, I had installed a PCI Ethernet card because I had initial issues with the onboard Ethernet port (which have been resolved). I removed the PCI card. Now, every time I boot up the computer, it attempts to install the "new hardware" and looks for the software, then says the PCI modem cannot be found. How do I correct this? I had gone into the Device Manager and uninstalled the device, but every time I reboot, it pops back up.