Same problem here: KSP Version .21.1, Kethane Version .7.4. Running way to many mods, but seeing as I upgraded my RAM for just that purpose I'm hoping I can get this to work. Updated both KSP and Kethane, but wasn't having this problem before. Should I start uninstalling mods one by one until I find the cause? Or is this a possible problem with Kethane? And UnSpokeNames, Resource mining will be a part of the final game: http://wiki.kerbalspaceprogram.com/wiki/Planned_features thanks!