Hi, I write here because on this page: http://dev.haiku-os.org/ticket/3868 I do not have the permission to reply. But in any way I am signed on dev.haiku-os.org. I found the same bug on my laptop Hp pavilion dv4231ea: Haiku hang on shutdown/reboot. I tried to disable ACPI from boot menu and also by the kernel setting file - I tried to enable APM too - but the trouble remains. This bug it's really annoying because i have to force the power off via the power button, so all my settings - eg: replicants on desktop, simlink in the deskbar, virtual memory setting, etc.. etc.. - are lost. Here there are the hardware specs of my laptop: http://tinyurl.com/6hyue5f Best regards.