Since I dont have work today, I figured I'd ask a question about string breaking, which is somewhat nagging me. I have a telecaster which a little over 1 year old. I have never taken it in to get setup. And I have never had a problem with it. Until recently. For about the last month, I am constantly snapping the D string. I think the problem is due to the fact that I wrote a song in which the D string is tuned up to E, and we have been playing that song live, so in the middle of the set I am tuning the D string up. I have only been breaking strings since we have been doing this song (note: I dont break the string on that song, only on regular tuned songs). Is the problem that I have somehow screwed the neck up, and should bring my guitar in to get setup (or do it myself, although im not completely sure how to)? I have lifetime free setups from the store that I bought my guitar in, so I should take advantage of that. And how often do guitars need to be setup? Thats it and thanks in advance.