Angel-125, So i have been playing your mod for a few days now and love it. The mobility is great. I have an issue and have not been able to resolve it. I am unable to modify the drill, when I select the option on the drill I get a popup window that has nothing inside. I am also unable to close this window once it appears. I removed all mods and just had yours in and had the same issue. I also did a fresh install of KSP and still have the issue. Any pointers would be great and if you need more information let me know.