|Sorry, but if you are not prepared to take the word of a (presumably) qualified technician regarding the state of the unit when he has it right in front of him to examine, then how on earth do you expect anyone on this website to give you any different or better advice? The fact that it randomly shuts down may very well be an indication there is a crack in the motherboard that breaks a circuit when the case/board is flexed in a certain way. If you personally did not remove the missing case screws, and strip out the threads by trying to replace them with the wrong size, this indicates you were not the original owner of the machine. |
Here's a thought. Take it apart yourself and photograph all the bits, including close-ups of the screwholes. Post the images on photobucket or some other online service where we can all have a look.
Goin' Fishin' (Some day)