Hello, I have an ASUS P4P800-E Deluxe with 4GB memory. I just recently upgrade my monitor to a ViewSonic VX2770 Series (Name ATI High Definition Audio Device, Manufacturer ATI Technologies Inc.) When I connected the monitor, I lost all my sound that was coming out of my speakers. I thought it was my Creative Sound Blaster Audigy 2 ZS card, so I removed it. Then I went into my BIOS to turn on the Realtec sound device that came with the MOBO. Still no sound. This is my setup : Adapter Description ATI Radeon HD 4600 Series Adapter Type ATI display adapter AGP (0x9495), ATI Technologies Inc. compatible Name Realtek AC'97 Audio ViewSonic VX2770 Series Name ATI High Definition Audio Device Manufacturer ATI Technologies Inc. I hope that someone can help me. I have no other monitor to connect to my PC to see if its the ViewSonic. I would really appreciate it very much if someone or anyone can assist me with this minor issue. Thank You. David