For 2 days now, I've been trying to get through the intro level pack so that i can learn to contribute to the real protein levels online. However, the levels consistently crash or stop responding on my Mac. I keep having to force quit, and restart Fold It. After multiple times of restarting, this time, it started me back on the first level, when I was on 27 until it crashed again. Please find a fix for this or recommend me a solution as I do like the game and want to continue to play. Don't make me get Batman on this..