ACPI Error (psarges-0459):[RTMP] Namespace lookup failure, AE_NOT_FOUND

[advantech]

Dear All,

I made a normal installation with this image from pfSense pfSense-1.2.2-LiveCD-Installer.iso on one i386 machine.

I get always automatically this error message.

ACPI Error (psarges-0459):[RTMP] Namespace lookup failure, AE_NOT_FOUND

I can nothing do, the installation was normal. With help from google I can find this error message but obviosly can nobody help. Can you help me please?

Thank you.
Hermann