My laptop seems screen goes blank when I move the laptop, and I can only get it back by forcing a shutdown via the on off switch. Could there be a bad connection somewhere?
No there is problem with your Operating System. First try to Start your Laptop just by pressing F8 and then select Last known Good Configuration and then press Enter.
If then not success again and then try o restore your system. And then try again.if again problem persist then there may be a problem with your laptop key.
I would suggest there may be a problem to do with connections of cables in your laptop.
The wires for the lcd screen are very thin.....could break easily.
I have changed a number of laptop screens and it is a fiddley job (lots of screws and small wires).
If you are having your problems when you move the machine, i doubt very much it will have anything to do with your OS or any software.
Going back to a last known good config wont help.