memes

My understanding of quantum physics collapses when observed. I feel like I don't get some of the fundamental ideas. Like I think I understand that the wave function is a superposition of several eigenstates of a particle. Just probabilities until observed. What I don't get is the apparent requirement for the observation to influence the observed state (Heisenberg?) and thus the need for information to travel, maybe even faster than light. I fully see Einstein et.al.'s problems with that. Except that it's not possible to transmit real information superluminal. But still entangled particles need to communicate the observed state. That part I don't understand at all. Einstein, Podolsky and Rosen's idea of particles determining the state upon entanglement through some unknown local variables makes so much more sense. But then Bell somehow proved that this could not be, because for some reason the Copenhagen interpretation yields around 25% disagreement in some experiment and local variables 33% and Bell always measured 25%. I don't even understand why the disagreement rate would be different.