DD 6yrs wants to play the violin so we enrolled her in lessons when the new school year starts and bought her a violin for Xmas. She wanted to play around with it today and she played with it a bit and it was working fine. Then suddenly it stopped in that the violin still makes the right sounding sounds when you pluck the strings but the bow does not make any noise besides a scraping noise. It plays right at the tip of the bow but not the rest. What can be wrong? I know nothing about musical instruments. I know she shouldn't have been playing it when she does not know how but I thought a bit of playing with it would not hurt. How can we fix this before she has to go to her lessons?