Thanks andym,
I always use the roll back option.You mention the pull out charts,well only last night I found out about the round protractor like tool up in the top right corner,it was by chance I pulled that out.If only I/we had read the manual fully,laziness I know
Just going back to my earlier scare now before I close this,can you just tell me,you know the message bar at the bottom of your screen?,is it transparent and not solid? (I cant remember now for some reason if it should be).I seem to have got this 'solid message bar' stuck in my head for some reason
Cheers.