I agree. Better to keep the peace of possible. The problem with land issues is if you piss off the neighbor--border disputes, loud dogs and vehicles, whatever--then you're stuck living next to someone who hates you, and the hatred festers. I've attended classes by a surveyor who does land dispute mediation, and he said the boundary (or easement) is usually a proxy for the other stuff.I do GIS for a living and I'll agree with the surveyors above that the GIS from the county could easily be off. I'd get it surveyed and if he did put that driveway in on your property I'd offer to sell it to him and rid yourself of the headache. No need to have bad blood with your neighbors.