acpi warning at startup

[Søren Hauberg]

Hi
In Hoary I just upgraded to linux 2.6.10-2-686.
When the machine boots I now get this warning (haven't seen it before):

pnp: PnPACPI: METHOD_NAME__PRS failure for IBM0071

I assume this means that acpi doesn't work, which is fine since it never 
has worked on this laptop (an old IBM ThinkPad 240).

I can live with the warning, but during boot up acpi gets activated 
anyway and then apm doesn't get started. So now my battery applet 
doesn't work...

Any thoughts?

/Søren