Toshiba laptop of satellite P205-S6267: Function Key for TouchPad and Turn Off not working

Hi everyone,
I have got a Toshiba laptop of satellite P205-S6267. I have reinstalled the OS for both Windows Vista and XP and updated needed drivers. There are 3 problems:

1) The touchpad is working OK, however the hotkey key of Touchpad enable/disable (Fn+F9) does not work anymore although I can disable/enable the touchpad through the ControlPanel\Mouse Property.
2) When I turn off system from Windows Vista, it is automatically done. When running Windows XP, I get a notice "It is safety to shutdown your computer now" after turning off computer and the power is not shutted down automatically unless I have to push the power button to complete.
3) The Power meter doesn't work although the batery seem to be working OK. If I open Power Option Property\Power Meter from Control Panel, I always see an unchanged message: Current power source:Batteries, Total battery power remaining:50%

Please give me a solution.
Thank you
Dao Ngoc Lam

 

Please do not double post per forum rules. I wish I could help with your problem, but someone with more knowledge will hopefully come along.