Senocular's ParticleBehavior repel method (problems with)

Hi you all! I can’t get this work:

prt01.onEnterFrame = ParticleBehavior.create(“repel”);

The particle is prt01. Any other method of the class works properly, but ‘repel’ seems broken.

I’ve tryed to initialize the vx, vy, v vars to =0 in the class just to see, and the particle moves. But I’d like not to modify the original class, since I could do something wrong.

Anyone knows how to get it work?

Thank you!