my NEC i-Select M4610 laptop keeps shutting down it trys to start up again but with no sucsses its only recently started doing this and the only change ive made is to get BT broad band. it works fine in work so its not a case of over heating ive evan reset back to factory settings and started again with no change ive replaced the power pack with a new one and i have tryed direct to power socket without the battery as i know its knackerd it no longer holds a charge but i still get the same thing it somtimes makes it as far as getting my dek top up but not for long and it starts shutting down and starting up again. can anybody help its starting to get annoying now.