New unit with an Intel 915GAG Board and integrated Realtek HD Audio. The Hard Drive was Ghosted to new machine. Everything has been working great until I decided to add a modem. When the modem was installed the blue screen came up with realtek audio error. With the modem out of the unit, the unit works fine. (boots properly). The device manager says there is a resourse confilct with the realtek audio driver. I have downloaded the updated audio driver and installed. Still the same result. This is a brand new unit and have ran out of patience. The bios is set properly. The unit cannot be reloaded. Is there anyone out there that can resolve my issue?