well, i think i got a big trouble here.
here some note from the screen.
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A problem has been detected and windows has been shut down to prevent damage to your computer.

the computer seems to be cause by the following file ACPI.sys
PAGE_FAULT_IN_NONPAGED AREA
if this is your first you've been seen this stop error system, restart your computer. if the screen appears again, follow these instruction :

check to make sure any new hardware or software is property installed. if this is a new installation, ask your hardware or software manufacturer for any windows updates you might need.

if the problem continue, disable or remove any newly installed hardware or software. disabled BIOS memory option such as caching / shadowing. if you need to use safe mode ...... f8 .... advance startup options .. bla bla bla ..

technical support :
** STOP : 0x00000050 (0f7942d20, 0x00000001, 0xf7507f2b, 0x00000000
** ACPI.sys - address F7507F2b base at f74e1000, data stamp 3d6dd69f

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so ? how to solve this problem ? i don't have any ideals to solve it.

recently, i try to use system restore to restore back what i 've done previous date. but it may go through to the windows. after for a while without any alert. it totally restart the computer and then display the above message again.

again, sometimes the computer is not responding before execute to the windows.

i tried to repair the windows at the windows startup. but it was failed, and the system was hanging right there.

for your information, i'm using award BIOS system and windows XP.

so, may someone to figure this problem out?