=== modified file 'share/extensions/svgcalendar.py'
--- share/extensions/svgcalendar.py	2009-05-06 15:48:49 +0000
+++ share/extensions/svgcalendar.py	2010-09-26 18:41:32 +0000
@@ -266,8 +266,9 @@
         gdays = inkex.etree.SubElement(g, 'g')
         cal = calendar.monthcalendar(self.options.year,m)
         if m == 1:
-          before_month = \
-            self.in_line_month( calendar.monthcalendar(self.options.year-1, 12) )
+          if self.options.year > 1:
+            before_month = \
+              self.in_line_month( calendar.monthcalendar(self.options.year-1, 12) )
         else:
           before_month = \
             self.in_line_month( calendar.monthcalendar(self.options.year, m-1) )
@@ -297,8 +298,8 @@
                         'x': str( self.day_w * week_x ),
                         'y': str( self.day_h * (week_y+2) ) }
             if day==0 and not self.options.fill_edb:
-	      pass # draw nothing
-	    elif day==0:
+              pass # draw nothing
+            elif day==0:
               if before:
                 inkex.etree.SubElement(gdays, 'text', txt_atts).text = str( before_month[-bmd] )
                 bmd -= 1