-   I have the same problem and when I restored it completely from restore disk, it appeared to solve the problem, but only for a week and then it did it again.
I am thinking that it has something to do with it overheating previously and now is damaged, but I haven't had it checked out yet.
It will not work once you attempt to load a user profile, the computer just stalls out but you can hear it running.-   meinnsb
2 months ago, expereinced sudden power lose, system shut down immediately due to that. solution back...
(More)
2 months ago, expereinced sudden power lose, system shut down immediately due to that. solution back then, disconnect battery, shook for a while, replace battery and hook up a/c. it worked. Now, for no apparent reason, not able to turn on pc at all. suspect motherboard problem and wanting to replace the intel centrino mobile motherboard. Presario v2000 s/n:CNF50806PQ p/nPV255PA. purchased from hong kong, now hard to find intel centrino mobile motherboard for it. any recommendatons