Comment 4 for bug 498035

I asked on IRC, but I'm not getting much help there trying to diagnose this. Here's what I know:

- When Windows doesn't use ACPI to power off, you get a screen that tells you that you can power down now. I'm not getting that screen. It's still saying "Windows is shutting down..."
- The QEMU monitor responds, so it's not completely frozen up. Something's going wrong inside the VM.
- It doesn't usually hang up. This seems to happen mostly when I reboot after I install software or do something that requires heavy disk or network activity. I understand that this bug has in the past been associated with the audio driver, but I can't tell if any audio happened, because I'm using VNC.
- I haven't done anything to prevent Windows from using ACPI.