Have Rockwell modem MDP3858V-WE, PCI slot, Just installed WIN XP HOME. Cannot connect to Internet. Have checked for drivers, but Aztech no longer offer support for this modem. What I have noticed is The "HFCMODEM, MDP3858 PCI modem enumerator" in win xp is missing from the DEVICE list. I am at the moment switching between XP & Win98se in order to access the Internet. Modem works fine with WIN98SE. Have installed & un installed both modem & software in win XP. Is it a new modem for XP!