cyberphone k

i just upgraded to Vista. now my cyberphone no longer works. i reinstall and uninstalled many times. tried XP compatilibity. and have download lastest driver. it would appear that windows does not recognised it, as it does not appear in my sound devices. any offers of help thanks chris

i have upgraded to vista and i have been using this cyberphone in yahoo and skype. Windows no longer recognises this phone ( voip) i have downloaded up to date drivers, latest skype too. this phone use to register in sound devies but no longer does. anybody have any ideas to get this working again? many thanks Chris