how about compaq nc6000? battery got problem, when i start my lappy using battery, sometime cant startup, give error message say certain system file is missing, but if i use adapter, then everything seems fine, please pm me for my detail, thx

i have totally changed 3 mobo for my compaq nc6000 just last week, so i know 100% it's not my system nor my mobo problem, because while i using my lappy, if i accidently plug off my ac power supply, my lappy will go into the error message.... so its battery problem and yeah i have format my lappy few times and it give me the same error message. ie ac power on, no error message, once its in battery mode, then problem.

i have no extra battery, if i have extra then i would swap it

ok here is the error message

Window could not start because the following file is missing or corrupt
\WINDOWS\SYSTEM32\CONFIG\SYSTEM

see whenever i plug out the ac, sure like tat