ThinkPad T20 with 5.0R wakes up from halt -p

[Oliver Fischer]

Hello,

I run my laptop (IBM ThinkPad T20) under FreeBSD 5.0 R. Everything is 
quite ok, only the ACPI stuff doesn't work up to 100%.

If I turn off my notebook via halt -p, it is turned of via ACPI. BUT 
after some time it starts again. Why?

Any ideas?

Thanks in advance

Oliver Fischer