Hi everyone, after always having had problems with the astronomer's pack (complete game crash in the main menu), I've solved it today by using the opengl workaround. Everything worked fine, until I noticed that MechJeb didn't show up anymore. Even the MechJeb items in the R&D department are gone now. Kerbal Alarm Clock, on the other hand, works just fine, with or without opengl and astronomer's pack. The other installed mods are Environmental Visual Enhancer and Module Manager, the first one was automatically added by ckan when I installed the astronomer's pack, the latter one was installed when I added MechJeb. Is there any known incompatibility between any combination of MechJeb or Module Manager with opengl, EVE or AP?