Hi I am having the problem, that when I patch my ACPIEC.sys in order not to get all the errors in my syslog, my computer no longer "finds" my battery. It dosnt mean that my computer does not run without power plugged in, but it does mean that XP does not know (nor show me) how much power is left in the battery. It just shows the "plugged in" icon on the taskbar. This also means that XP does not go to sleep when the power is getting low... I am using a AA1 A110 with 8MB SSD btw. Besides that issue - both a1ctl and AA1FanControl works fine. I do prefer the AA1FanControl though, as a1ctl has a tendency to make small 5 sec boosts where the fan goes to VERY noisy - where AA1FanControl dosent do this. Regards macsat