Hello - I have a 100-year old house with lovely floors. They squeak but it's not a bother. There is one board in the hallway in a high-traffic spot that keeps causing trouble, though. It has one nail that keeps popping up even after I hammer it back down. I've got a lot of holes in my socks as a result! Can I remove the nail altogether, put in additional nails, is this a sign of a bigger problem... Or do I just need to nail it down every couple of weeks and stop complaining?! Any help would be appreciated.