Actually, after dilligent checking I have found out that conexant and microsoft kinda talked about these chipsets and made a generic driver for use with these modems in XP. Unfortueatly though, many online apps that you use will get disconnected when using these drivers in HP machines. Way to go Microsoft, HP, and conexant. These sndcard/modem combos seem to be relentless at causing users of machines containg them to have problems in every OS except Win 98. So basically, if you are wanting to have reliable equipment you will have to go to the nearest computer store and buy a new sound card AND modem with reliable drivers. What should tell us all that these modems are no good is the fact that you don't see them on any store shelves and never will. Every combo card that has come out has had nothing but problems and most of them only work with one maybe two OS's. Sorry guys but you're going to wind up having to go spend some money on a new SndCard and modem.Sorry. If you have found something different let us all know.