Hey guys, an issue I've been struggling with all evening here. Today I upgraded this box from onboard graphics to a Nvidia Geforce GT 430 and also installed the 260.99 graphics drivers from the main Nvidia site. the motherboard is from the Foxconn G31MX series of boards (775 chipset). The OS is Windows 7 Professional After installing the new graphics card and drivers, my sound device was replaced with a non-functional Nvidia HD audio device, I have uninstalled this and installed the windows 7 drivers from foxconns support site. Still no audio device ! Any help would be much appreciated.