Hi. I am using a Dell Dimension 4550 at work and I had just reinstalled everything. I had used the Dell Drived cd to install drivers, except for the built-in Intel Pro/100 VE Network Connector and it can detect the device and would install the driver and would say that the driver has been installed successfully. Next window would say that there was a problem installing this device. In the Device Manager, it has has a ( ! ) mark and tried to reinstall the driver by pointing the location to the Dell driver disc and momentarily you would see 2 folder and the "flying files" like it is installing the drivers but after that it would have a Code 28 > The drivers for this device are not installed. (Code 28). How would you test if your ethernet connector is defective since it is built in but device manager can detect it? Thanks.