Raider83
PunkRockFaces
Raider83
Well if this were an electric I would tell you that you may need a truss rod adjustment. Did you recently change the strings on it? Most acoustic guitars also have a truss rod.
xp My guess is that your nut isn't properly sized to accommodate the string right.
That or it's just that your nut or bridge is starting to warp, or worst of all, maybe the neck.
Bad neck is like telling your guitar that it has cancer...
REALLY? acoustics have truss rods?? then how come I've never seen a truss rod cover? LOL I never did understand why they "didn't" have one. LOL Well on most classical guitars it's because you have to get at it through the sound hole. On steel strings it can either be:
1. At the base of the neck, and you have to get to it through the sound hole, like on a classical. OR
2. Just like on an electric located at the headstock.
Like on my Ibanez Talman model:

Unless you have a specially built or EXTREMELY old guitar, (think 1800's) then it will almost always have a truss rod. This is simply because it's to hard to find a piece of wood that is strong enough, and hard enough to keep its shape for long periods of time, without being brittle and prone to break.