Johan - whenever you make 4 hypercubes in ONE level then the game crash, the internet crashes and your entire computer crashes. its SOO ANNOYING!!! but if you make 2 hypers here and another 2 there and have 4 on teh board...it wont freeze.
I've had it crash on me before, but this time I got all the hypers used, even though my scored SUCKED for what I had there! Just didn't have enough time to think about how to use any of them.