for mine it was only the little string, so this mornin after my panic attack i just got to gribs, got a knife from the kitchen and just sliced a bit into the nut to make a bigger groove for the little string so it wouldn't fall out of the slope it had created, and bingo its fine. it's not a definite solution so i guess a graphite or better quality nut is in order soon, i'll just have to see.