Hi,
Andrew, please apply the attached patches (also on the web):
http://hell.org.pl/~sziwan/asus/acpi4asus-0.24a-0.25-2.4.diff [for 2.4]
http://hell.org.pl/~sziwan/asus/acpi4asus-0.24a-0.25-2.6.0-test.diff [for 2.6]

ChangeLog says:
Version 0.25
        Various fixes
        Added support for A2500H (thanks to Ricardo Cerqueira)
        Added support for M3700N and S1300N
        Work around duplicate error message

Note: The CVS is up-to-date, the sourceforge official release will appear
soon.

Best regards, TIA,

-- 
Karol 'sziwan' Kozimor
sziwan-DETuoxkZsSqrDJvtcaxF/A@public.gmane.org