Index: openacs-4/packages/dotlrn/tcl/dotlrn-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/dotlrn/tcl/dotlrn-procs.tcl,v
diff -u -r1.73 -r1.74
--- openacs-4/packages/dotlrn/tcl/dotlrn-procs.tcl	12 Nov 2003 10:17:14 -0000	1.73
+++ openacs-4/packages/dotlrn/tcl/dotlrn-procs.tcl	13 Nov 2003 09:13:16 -0000	1.74
@@ -234,7 +234,11 @@
 
         @see acs_user::get_element.
     } {
-        return [acs_user::get_element -user_id $user_id -element name]
+        if { $user_id == 0 } {
+            return {}
+        } else {
+            return [acs_user::get_element -user_id $user_id -element name]
+        }
     }
 
     ad_proc -public instantiate_and_mount {