I had a problem with Steam about a week ago and had to reinstall it, although it didn't affect my SDK install because I keep it on a different drive than steam.exe. Since then I haven't been able to launch Modbuddy, getting the "cannot find one or more components, please reinstall the application" error. I have uninstalled and reinstalled all redistributables multiple times (with admin privileges), the entire Dev Tools themselves (twice), verified the tool cache (twice), tried deleting the Modbuddy registry, uninstalled and reinstalled several different versions of the Microsoft .NET Framework, rebooted a number of times throughout, and nothing works. I don't know what else to do, and am desperate to continue updating my mod. 2K turned down my support ticket because they don't support mods, even though this is official Firaxis/2K software.