diff -r ce3adab29aef -r b8263d717e74 web/views/forms.py
--- a/web/views/forms.py	Wed Feb 24 15:08:13 2010 +0100
+++ b/web/views/forms.py	Thu Feb 25 11:39:49 2010 +0100
@@ -112,7 +112,7 @@
     def default_renderer(self):
         return self._cw.vreg['formrenderers'].select(
             self.form_renderer_id, self._cw,
-            rset=self.cw_rset, row=self.cw_row, col=self.cw_col)
+            rset=self.cw_rset, row=self.cw_row, col=self.cw_col or 0)
 
     formvalues = None
     def build_context(self, formvalues=None):