Deleting encrypted file doesn't work on Suse 9.2 & yast2 (console or KDE) - how to remove it ?

Hi, I've added encrypted file for just a short test. But now it seems I cannot remove it anymore. I'm trying to delete it in Yast (console or KDE), but nothing happens... How to remove it manually ? How to remove it through Yast ? Thanks in advance, regards, Rob.