--- ubiquity-1.3.15.old/scripts/install.py	2007-01-29 21:44:13.000000000 +0800
+++ ubiquity-1.3.15/scripts/install.py	2007-02-03 18:36:17.000000000 +0800
@@ -988,7 +988,7 @@
         try:
             participate = self.db.get('popularity-contest/participate')
             self.set_debconf('popularity-contest/participate', participate)
-        except DebconfError:
+        except debconf.DebconfError:
             pass
 
         self.chrex('mount', '-t', 'proc', 'proc', '/proc')