[h=1]Audio not working after updating to Windows 7 on Gateway laptop NX860XL[/h] What I've done: I've upgraded my Gateway laptop NX860XL from Vista to Windows 7. The problem: No audio. The speaker icon on the status bar shows a little red cross and when I mouse over it it says: "No Audio Output Device is Installed" Device Manager: "Sound, video and game controllers" / "Sigma Tel High Definition Audio CODEC" / Right-click, "Properties", "General": "This device is working properly". "Driver", "Update Driver..." it says I've got the best and most recent driver. Any suggestions?