diff -up system-config-printer-1.1.18/system-config-printer.py.downloadable-drivers system-config-printer-1.1.18/system-config-printer.py
--- system-config-printer-1.1.18/system-config-printer.py.downloadable-drivers	2010-03-10 09:33:46.000000000 +0000
+++ system-config-printer-1.1.18/system-config-printer.py	2010-03-22 17:18:40.177572582 +0000
@@ -6334,6 +6334,7 @@ class NewPrinterGUI(GtkGUI):
             # Should report error.
             print drivers
             print traceback.extract_tb(drivers[2], limit=None)
+            self.downloadable_drivers = dict()
             return
 
         self.openprinting_query_handle = None