Tini composed on 2015-06-06 21:26 (UTC-0300):

> the problem was/is there are two file managers
> (or 'de') but the default is not tde. rather the default 
> interface is 'icewm' which looks like garbage.

The only relationship between a file manager and a DE[1] is that normally
every DE includes at least one GUI file manager, of which one is set to be
the default file manager, entirely unrelated to default as may apply to the
DE that starts when or after you login, or automatically on boot.

"The" file manager always installed in Windows is Windows Explorer. File
Managers in Linux include Konqueor (default in TDE & KDE3), Dolphin (default
in KDE 4 & 5), Nautilus (default in Gnome), Midnight Commander (MC; available
in any, default in none), among *many* others.

IceWM is a DE. With TDE installed on an OS that uses a greeter instead of an
auto-login, the desired DE for each login can be selected from the greeter
menu. Apparently installing in the manner you did either didn't enable (or
install a greeter) for you to be able to make such a choice, and/or didn't
make TDE the default DE or greeter selection.

Interface is not normally used as a synonym for DE[2].

[1] Desktop Environment http://en.wikipedia.org/wiki/Desktop_environment
[2] http://en.wikipedia.org/wiki/Interface_%28computing%29
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