I think it isn't the path, it's the name of the save-file. If you play a tutorial or a campaign and want to save it, the name is something like
- "Basic Control (Archive all messages in your inbox)"
which is cutted in Save dialog to:
- "Basic control (Archive all messa"
- "Vom Untergang zum Neuanfang (Baue ein Lagerhaus und eine Pferdezucht) (From Nemesis to Ger [cutted]"
The box for displaying such long names is too short (resolution 1680 x 1050).
I think normal games doesn't have such long names. But the last example shows another thing: The German and english name is part of the name. But this is only shown in the dialog, the real filename is only in german.