I'm not sure if this is a motherboard question or not, but my audio is integrated so I thought I'd give it a try. I have recently purchased a Asus M4A785TD-V EVO motherboard. It has VIA integrated audio. I installed the latest drives and it works, sometimes. But every once in while I loose my left channel. All other sound works. If I restart then it comes back. Any ideas what is going on? It does to the front port as well as the rear ports. Just the front left channel. Rear left works.