I have a 07 Gary Fisher Wahoo, not even a year old. I have never had a problem with the brakes ,not even 2 days ago, all of a sudden tonight, im getting the bike ready to sell, and I take it for a ride and the brakes are screaming when i hit them. they are v brakes not disc, What would cause this all of a sudden?And on both front and back. FYI I haven't used any solvents or cleaners of any kind on the rims. Is there a quick fix for this. I hate now to have some one come test ride the bike and blow out there ear drums.