Index: openacs-4/packages/xotcl-core/tcl/30-widget-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xotcl-core/tcl/30-widget-procs.tcl,v
diff -u -r1.12 -r1.13
--- openacs-4/packages/xotcl-core/tcl/30-widget-procs.tcl	3 Apr 2007 19:17:17 -0000	1.12
+++ openacs-4/packages/xotcl-core/tcl/30-widget-procs.tcl	16 Apr 2007 09:52:56 -0000	1.13
@@ -134,7 +134,11 @@
   #
   proc get_user_name {uid} {
     if {$uid ne "" && $uid != 0} {
-      acs_user::get -user_id $uid -array user
+      if {[catch {acs_user::get -user_id $uid -array user}]} {
+        # we saw some strange cases, where after a regression,
+        # a user_id was present, which was already deleted...
+        return nobody
+      }
       return "$user(first_names) $user(last_name)"
     } else {
       return nobody