Hi Thierry,
I made an accout with name "jürgen", password "jürgen" and the home directory is named "jürgen" too (for testing purpose only).
Without tdm i.e. from a console I can login without any problems, but TDM-Login says "wrong password"
How is your keyboard setup (in TDE)?
When I install, TDE defaults to US keyboard and I have to install the swiss keyboard (Trinity Control Center -> Regional & Accessibility -> Keyboard Layout). Of course you probably have it in German...
AFAIK is this setting for the user when logged in and not for TDM to login.
In tdm I set the language to german as well, but this only effects the messages shown.
Console keyboard is probably controled by your distribution's settings.
Yes.
I don't advise using accented letters in passwords and filenames (although I do use @, but I know where it is on the US keyboard). But you can set a provisory password, change the keyboard, then the password.
AFAIK only user names starting with a number are really forbitten and the user name is not the problem. It seems, that tdm dosn't like the Umlaut in the password.
Fine regards Rolf