I received my replacement 52 oz. lava lamp direct from Lava Lite. When I turn it on, it takes about 1/2 hour and looks like it's starting to liquify. It sent up a couple of small "streamers" and then a couple of small bubbles. Then, everything kind of settled on the bottom and the ball at the bottom just churns around. That's it. No motion. Any thoughts? Or is Lava Lite really just about the worst there is?