Does anyone know how to fix this one?

The files download with the proper file names, but they do not show correctly in the browser listing.

Case in point:

http://www.uag360.com/Courses/Fifth_Semest...rdio/ACT1/test/

The second file name down, looks like this via a browser listing display:

2 Fiebre Reumática.ppt

.. but it should look like the actual downloaded file name, i.e.:

2 Fiebre Reumática.ppt


Likewise for file number 5:

5 Estenosis Aórtica.ppt

... but it should look like this:

5 Estenosis Aórtica.ppt


Do I need to make some kind of change in .htaccess or within the general httpd.conf?

Yes, we mostly host English text/sites, but this is an exception. And I have been trying for weeks to figure this one out, so any help would be very much appreciated.

Thanks!