I have a Cantatis Overture 192 soundcard an d previously ran it in Vista SP2 with no problems. I recently upgraded to Windows 8 Pro build 9200. I cannot get Windows to see the soundcard. I have downloaded and installed the driver from the manufacturer and ran the installation as administrator in compatibility mode with Vista and also tried compatibility mode Windows 7. Accordind to cCantatis their Driver is compatible with Windows 7 (Cantatis - Overture 192 High Performance 24-bit 192kHz Audio Interface Details) and according to this post (Audio Device Technologies for Windows) there is little difference in sound architecture between Win 7 and Win 8. I have tried every avenue including the troubleshooters, adding devices etc. but as Windows does not show the card anywhere in devices I don't know what to do next. Any suggestions?