new set up asus A7N8X mobo, running xp pro.,have reset bios but have not reflashed, have lost all sound, post report and system sounds cd etc were all there. Now all sound from (line out sound)rear connector has disappeared. Have checked front output connector (connected onboard)using same head phones and have sound. Have looked at bios settings after resetting back to default all seem as per manual. Have reinstalled from scratch with mobo cd and xp still nothing - anyone any ideas or experience of this problem????