Had a problem with booting, just kept going into a loop closing down down and trying to reboot. A restore did not help, so I upgraded from XP to XP Pro (Band new unused copy) Graphics O K but no sound just a message no auo hardware. Read previous q & answers on the subject and have establised that Muiltimedia Audio Controller is VIA-AC'97 but i cannot find a driver for it. The motherboard is Microstar International MS 7211. I don't have a motherboard CD suggestions please. I can get a beep sfrom Accessiblty with Caps Lock Key. Suggestions please.