A bit of a ball-ache, this - front door is secured by a mortice latch/lock but is ever-so-slightly out of position, so that the latch will only engage if you either slam the door, or close it fully and gently, and apply a sudden 'shove' to get the latch to click into place (something that SWMBO's not strong enough to do). In other words, the striker plate needs moving no more than 1 mm outwards from the frame.
There's no way I'd able to fill and redrill the screwholes in the frame effectively (the old and new would overlap). Suggestions, please?
Thanks David