Send the new one to Grip for some gusset action so it doesnt happen again!
....maybe you could borrow Meatlover's demo while he's sitting at home mending his fractured clavicle. That bike needs regular whippin.
...better to squirrel and ride again, than to brett and be broken.
Trek have changed the design
Also everyone, this is a 2-3 year old frame, it's obviously not going to last for ever. it's downhill, stuff brakes and if it's out if warranty there isn't much you can do.