Where are generated worlds saved ?

I play on 2 computers and I like to have the same local game on whatever computer I'm at. So I keep the mods folder (from the game folder) and the Saves and SavesLocal folders (from appdata) on dropbox, and use the magic of symbolic links to make windows think the folders are where they should be, and it works beautifully - whichever computer I'm playing from, there's my local game, all good.Well it was all good until I generated a custom map for a new local game, I can only play that on the computer I created it on, the other computer says the save is for a world that doesn't exist. So obviously there's another folder or two that needs to live on dropbox, but I'm not sure what.Anyone able to help ?Cheers