boot into safe mode by tapping f8 at startup,then remove the driver,and reboot.(remove it via device mannager).
or boot into safe mode then do a system restore..
your lg monitor does NOT reqiure drivers your graphics card on the other hand does.
what graphics card do you have....in device manager also.
i will post you a link to the latest driver,,,,,,,,,,,,,,,,,,
regards
danzil