I recently upgraded my machine from Windows ME to WIndows 2000 Pro. I have a PC Chips Motherboard, Socket 370, M758LMR. It came with a systems CD that contained Windows 2000 drivers. I updated all the drivers and now everything works but my SOund. I get no sound at all, even though Windows tells me the device is working properly and the drivers are up to date. The sound card in onboard. Hope someone can help.