Hi everybody, I can not solve a sound problem . when running sound check, audio cds or videos I still have a cracking noise in my guest system. Sound in host runs fine. Technical Details: - Host: Linux 2.6.26-2-686-bigmem (Debian / Lenny) - Oracle VM VirtualBox 3.2.8 r64453 - Guest WVista, Sound Driver AC'97 installed - attempts with alsa and pulse Thank you for any help in advance, Best regards, Petra