Problem With Acer Travelmate 2300

Problem:
The problem with my Acer Travelmate: when the travelmate 2300 battery ( lcbtp03003 ) is connected(with or without AC power on), the laptop freezes on the login screen (I use Windows XP Pro SP3).The keys are useless, the mouse or touchpad also, ant every button on the machine is dead - even the power-button!
On AC power only, without the laptop battery connected, the laptop works just fine. When I try to connect the acer travelmate 2300 battery after the OS started, the CPU soon goes at 100% and stops every system.
The machine works fine in Safe Mode, though, with battery... I tried system restore, but it didn't help.
Does anybody have an idea what might be wrong?

Resolution:
There are probably some corrupt files on the harddrive or there is damage on the hard drive. I would suggest to try using the windows setup cd or sony recovery cd to restore the system back to normal, if the problem is not solved by that then you most likely have a hardware problem which is most likely in the harddrive, might have to replace it, they don't cost much.

if you press f8 in start up to get the advanced startup menu, select safe mode.

start in safe mode and login

then

press start -> now run -> type in Cmd -> Type in the shell window -> chkdsk /F /X /R C:
if asked select Y to perform the operation on next start up.

see if the problem is solved.
--------------------------------------------------

Buy cheap laptop batteries online for your notebook pc.
Acer travelmate 2300 lithium ion battery in usa http://www.my-batteries.com/laptop-batteries/acer-travelmate-2300.htm
Acer travelmate 2300 battery in uk http://www.shopbatteries.co.uk/laptop-batteries/acer-travelmate-2300.htm