Sorry I was so long getting back, I've got 'man flu', couldn't be bothered with anything the last couple of days.
Looking at the back of my machine one hinge is sitting higher than the other stopping the lid closing properly and putting a little extra pressure on one side of the case which eventually has caused the damage.
At least thats how it looks to me.
The thing is, will the manufacturer agree. My warranty ran out a few weeks ago.
If anyone has a better idea I would very pleased to hear it.
Seasons greetings to all.