I clicked some button and the FF window does not show again. However ribbons are still being given to Kerbals. No matter what I do, I click on the FF button, it gets green and grey (OK) but the window doesn't show. I think I clicked some button by mistake but I don't have the KSP.log from that day, so I don't know what I did. I tried to reinstall the mod but it doesn't fix (i have a lot of mods, but none is changing nor adding planets, so it shouldn't be a problem) I've also started a new carreer with the reinstalled mod, but nothing again. The mod is so great, i wouldn't like to miss it oh. more info: I've checked the last Log, and it goes like this: C:/Program Files (x86)/KSP 0.23.5.464/KSP_Data/../GameData/FinalFrontier.dat (this folder does not exist) Might be that? Actually my FinalFrontier.Dat is here: C:\Program Files (x86)\KSP 0.23.5.464\GameData Maybe it's looking for the *.dat in the wrong folder. and later on the log says this: oh, and later on it asks me to let you know: