I have been using this motherboard with XP Pro X64 succesfully for a month or so now, but I got my first BSOD the other day when my son was playing on it. The game is Simpsons Hit and Run which works fine up to a certain point in the game and then every time there is a BSOD which mentions RTKHDA64.SYS - the Realtek HD driver. I have tried updating the latest audio drivers from the Asus site but the same thing happens. Has anyone any ideas (apart from disabling the sound of course!)