Spyder extra paintball gun leaking c02?

i played one round of paintball yesturday then took a short break, on my way back out it started leaking pretty bad all of a sudden, the leak was coming from the handle, right above the trigger...the ege where the handle screws to the gun....i took it apart and the o-rings look brand new, its only been used 2 games out of the store...any ideas? thanks