Overheating on a Latitude C600

Hello all.
I'm working on getting acpi working correctly on my latitude C600. All events work correctly, but the fan does not automaticaly come on when the processor gets hot. ( Luckily I have the i8k module and i8kutils working, so I haven't melted my processor yet. and then the bios handles the fan alright when I use apm, too. ) Can anyone tell me what i may have broke? When i jave PNPACPI enabled i get this:

brian@grace ~ $ sudo modprobe thermal
WARNING: Error inserting processor (/lib/modules/2.6.16-gentoo-r6/kernel/drivers/acpi/processor.ko): Invalid module format

I found this in my dmesg:
processor: exports duplicate symbol acpi_processor_set_thermal_limit (owned by kernel)

I have the kernel ( 2.6.16-gentoo-r6) configured like this:
brian@grace /usr/src/linux $ cat .config | grep ACPI # Power management options (ACPI, APM)
# ACPI (Advanced Configuration and Power Interface) Support CONFIG_ACPI=y
CONFIG_ACPI_SLEEP=y
CONFIG_ACPI_SLEEP_PROC_FS=y
# CONFIG_ACPI_SLEEP_PROC_SLEEP is not set CONFIG_ACPI_AC=y
CONFIG_ACPI_BATTERY=y
CONFIG_ACPI_BUTTON=m
CONFIG_ACPI_VIDEO=m
# CONFIG_ACPI_HOTKEY is not set
CONFIG_ACPI_FAN=m
CONFIG_ACPI_PROCESSOR=m
CONFIG_ACPI_THERMAL=m
# CONFIG_ACPI_ASUS is not set
# CONFIG_ACPI_IBM is not set
# CONFIG_ACPI_TOSHIBA is not set CONFIG_ACPI_BLACKLIST_YEAR=0
# CONFIG_ACPI_DEBUG is not set
CONFIG_ACPI_EC=y
CONFIG_ACPI_POWER=y
CONFIG_ACPI_SYSTEM=y
# CONFIG_ACPI_CONTAINER is not set CONFIG_X86_ACPI_CPUFREQ=m
# CONFIG_X86_ACPI_CPUFREQ_PROC_INTF is not set CONFIG_PNPACPI=y
# CONFIG_SERIAL_8250_ACPI is not set

also i noticed that when i modprobe button, fan, or any of these modules i get duplicate directories in /proc/acpi.

without PNPACPI, the modules load fine, but the fans still don't ever seem to come on by themselves, and i'm afraid to let the processor go above 80C.

/proc/acpi/thermal_zone/THM $ cat *
<setting not supported>
cooling mode: critical
<polling disabled>

state:                   ok
temperature:             64 C
critical (S5):           98 C

so how can i get my automaic cooling back?
if someone just wants to point me to the right docs, I don't mind reading up on this stuff.

Thanks much,
brian