I brought home Rosie, who is the mother to one of the Kyte's geldings named (I think) Summy, and Mabes a pinto. I have them posted in an intro thread in the main forum.
It really helps if you know what their previous experience has been but quite often simply retraining them can cure the problem. I have found that a lot of horses that are 'trained' to drive quite often have some huge holes in their training and simply taking a step (or two or three) back and starting over can resolve their fears.
I am so excited'to hear about everyone's interest in 'agility' with horses! I am working on becoming accredited in horse agility with the intention of starting an agility circuit here in Ontario. There is an international halter agility club/organization and I would like to follow their format adding in driven agility. I am very excited about it as it is something I really enjoy. And they do have a liberty agility class!