--- rxvt-unicode/src/scrollbar.C	2006/01/03 02:43:33	1.29
+++ rxvt-unicode/src/scrollbar.C	2006/01/15 06:02:41	1.30
@@ -155,9 +155,9 @@
 
   if (update)
     {
-      top = nsaved - view_start;
+      top = view_start - top_row;
       bot = top + (nrow - 1);
-      len = max (nsaved + (nrow - 1), 1);
+      len = max (nrow - 1 - top_row, 1);
       adj = (((bot - top) * scrollbar_size ()) % len) > 0 ? 1 : 0;
 
       scrollBar.top = (scrollBar.beg + (top * scrollbar_size ()) / len);