Okay any one else confirm this, if i apply mercalli stab fx to a m2t clip renders fine... if i try to add motion blur of any amount V9a gives me the out of memory issue or crash. Mercalli can only be used in 32bit and have tried various combinations of ram mem and render threads as other post suggest but no luck. I have to render out w/o motion blur then apply MB to rendered out clip and it renders out fine.