kernel panic at reboot/shutdown

[Eric F Crist]

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Hey again,

I get the following message when I reboot/halt my system.  If someone could 
explain what it means and give me a hint on how to fix it, I'd really 
appreciate it.

Terminate ACPI

Fatal trap 12: page fault while in kernel mode
fault virtual address		=0x18
fault code				=supervisor write, page not present
instruction pointer		=0x8:0xc041462d
stack pointer			=0x10:0xd1c70c8c
frame pointer			=0x10:0xd1c70cb8
code segment			=base 0x0, limit 0xfffff, type 0x1b
processor eflags		=DPL 0, pres 1, def32 1, gran 1
					=interrupt enabled, resume, 10PL=0
current process		=22 (irq 9: dc0 uhci0+)
trap number			=12
panic: page fault
uptime 8h59m48x
Terminate ACPI

Automatic reboot in 15 seconds - press a key on the console to abort
- -->Press a key on the console to reboot,
- -->or switch off the system now.

Thanks for all your help!
- -- 
Eric F Crist
AdTech Integrated Systems, Inc
(952) 403-9000
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