I just fixed mine yesterday...well, i should say that i kind of fixed them. I put springs in between the brake pads, on the bolt that holds the pads in. Before this i was getting about 3/4 -1 turn when i spun my wheels as hard as a could. After i was getting somewhere around 4-6 turns. however, when i pry the brakes apart with a screw driver just a hair, they would spin for about a minute!! But the springs are an impovement for now.
I also heard someone say something about their dealer relplacing the seals in the master cylinder i think and they said it fixed there problem completely! i may take mine to a dealer and have them do something with it, but my local dealer only has a bunch of goons who can't aren't the sharpest tools in the shed. i'm going to try a different dealer or something i think. good luck.