I...Don't get it? What are trying to say? You downloaded mechjeb, shot for Jool, messed up, then crashed into laythe... I don't see what mechjeb has to do with this. Sounds like an issue on your end, I'm running it just fine. Did you update mechjeb? Latest version is 1.9.3 ...HOW? What did it do, specifically, that made you so terrible?