I note that my config.sys has psd=acpi.psd and I know I need more.
I installed the files from acpi13042008.zip, all files dated 13
Apr, overwriting files from Dec.
So I hunted around and found:
PSD=ACPI.PSD /SMP /TMR /APIC /R /CD /!NOD
When I boot with that I get a few screens full of logging unmasking
IRQ data but the wps never starts. It logs C-A-D, power button,
A/C plugged in and unplugged.
I changed it to PSD=ACPI.PSD /SMP /APIC /!NOD with no luck.