ACPI Warning: 32/64X FACS address mismatch in FADT

[J.D. Bronson]

I have an INTEL DP43TF motherboad with an Intel Core 2 Quad. (non-HTT)
When I boot up Freebsd 8.1 I see a message like this:

"ACPI Warning: 32/64X FACS address mismatch in FADT..(blah)..using 32"

I cant determine if this is OK and a cosmetic type of message or 
something more serious to question.

Google turned up several hits but nothing explains what this is and/or 
the importance of it.

Thanks,


-- 
J.D. Bronson