The steps have been:
-Mounted dotlrn in the main site -- OK
-Created term -- OK
-Created department -- ERROR
We have resolved it restarting aolserver.
-Created subject -- OK
-Created classes -- OK
But the template is showed in two column, the main-conten "DIV" are "float: right" maybe this to be a problem. We have tested with every templates and browsers.
We haven´t changed no one parameter
Regards (sorry by the previous post, I selected the format in HTML)