Well, at first what I did was move FO:T closer (say c:\fot), so well, that saved quite some time, but then I dediceded to investigate the matter.
Ends up that the game requires some directories to exist, or otherwise it'll make the usual "choose drive" prompt.
And here's the list, all found in <b><tt>core\editor</tt></b>
- <b><tt>clips</tt></b>
- <b><tt>tilesets</tt></b>
- <b><tt>triggers</tt></b>