Index: field.class.php
===================================================================
RCS file: /cvsroot/moodle/moodle/mod/data/field/file/field.class.php,v
retrieving revision 1.17
diff -u -r1.17 field.class.php
--- mod/data/field/file/field.class.php	26 Feb 2007 06:56:07 -0000	1.17
+++ mod/data/field/file/field.class.php	12 Apr 2008 22:39:02 -0000
@@ -115,10 +115,14 @@
             $width = $this->field->param1 ? ' width = "'.s($this->field->param1).'" ':' ';
             $height = $this->field->param2 ? ' height = "'.s($this->field->param2).'" ':' ';
 
-            require_once($CFG->libdir.'/filelib.php');
-            $icon = mimeinfo('icon', $src);
-            $str = '<img src="'.$CFG->pixpath.'/f/'.$icon.'" height="16" width="16" alt="'.$icon.'" />&nbsp;'.
-                            '<a href="'.$source.'/'.$src.'" >'.$name.'</a>';
+            if (isset($contents[0])) {
+                require_once($CFG->libdir.'/filelib.php');
+                $icon = mimeinfo('icon', $src);
+                $str = '<img src="'.$CFG->pixpath.'/f/'.$icon.'" height="16" width="16" alt="'.$icon.'" />&nbsp;'.
+                                '<a href="'.$source.'/'.$src.'" >'.$name.'</a>';
+            } else {
+                $str = '';
+            }
             return $str;
         }
         return false;