Whenever I have MechJeb 2 Installed, the files for the game load extremely slowly and eventually the game crashes before I get to the main menu. Is this due to incompatible mods? I have: Quantum Struts, Damned Robotics, Exsurgent Engineering, Extraplanetary Launchpads, Firespitter, KAS, HyperEdit, Kethane, Lionhead Aerospace, Lack Luster, MechJeb2, Protractor, RemoteTech, ResGen, Romfarer LazorSystem/LazorGuidedWeapons, TAC Life, and TV Aerospace. Is there something in there that isn't compatible?

Look at this post and try the fix : http://forum.kerbalspaceprogram.com/threads/12384-PART-0-22-Anatid-Robotics-MuMech-MechJeb-Autopilot-v2-1?p=726754&viewfull=1#post726754
or get the dev version here : http://jenkins.mumech.com/job/MechJeb2/
It should solve your problem

thank you very much, that worked very well