diff --git a/TODO b/TODO
index e891d9a..06ef809 100644
--- a/TODO
+++ b/TODO
@@ -1,7 +1,6 @@
 about glyph width:
  - IE
- - parameter for transform/trunc when width is too wide/narrow
- - stretching ratio might not be correct..
+ - stretching ratio might not be correct.. letter 'f'
 
 better wrapper of ff
  - need C++ class
@@ -14,6 +13,8 @@ merge sub/sup into one line
 bug found in baidu(ubuntu...)
 precise link dest: zoom
 
+position history stack (popstate)
+
 
 ==Future==
 argument auto-completion