diff --git a/ChangeLog b/ChangeLog
index 301b1d54..44ed7d93 100755
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,6 @@
 2009-03-22 version 0.6.4: 
 - enhanced server performance
-- external avatars system to prevent lags
+- optional external avatar system to improve scalability
 - feature-request(#0000008): gamelist in lobby saves sorting of columns now
 - bugfix(#0000007): Highlighting of cards on split pot could be better
 - bugfix(#0000003): Low straight flush (with A) incorrectly picked
diff --git a/INSTALL b/INSTALL
index f656e6f2..88a7b183 100644
--- a/INSTALL
+++ b/INSTALL
@@ -8,10 +8,12 @@ Linux:
 - zlib version 1.2.3  --> http://www.zlib.net/
 - libcurl version >= 7.16  --> http://curl.haxx.se/
 - gnutls (e.g. version 2.2.2)  --> http://www.gnu.org/software/gnutls/
-- libboost_thread, libboost_filesystem, libboost_datetime, libboost_program_options, libboost_iostreams
+- libboost_thread, libboost_filesystem, libboost_datetime, libboost_program_options, libboost_iostreams, libboost_asio
   (version >= 1.36, 1.38.0 recommended)  --> http://www.boost.org/
 - libSDL_mixer, libSDL  --> http://www.libsdl.org/
 
+NOTE: PokerTH might compile with libboost < 1.36 but can result in a crash when starting a server!
+
 Windows:
 see docs/build_mingw_windows.txt
 
@@ -33,4 +35,3 @@ Linux:
 Windows: 
 
    Please check out the automatic windows build script --> http://sourceforge.net/project/showfiles.php?group_id=166634&package_id=268019 
-   Thx to Lotodore!!!
\ No newline at end of file
diff --git a/docs/win32_build_scripts/readme.txt b/docs/win32_build_scripts/readme.txt
index 35e7c4e4..3e6b5281 100644
--- a/docs/win32_build_scripts/readme.txt
+++ b/docs/win32_build_scripts/readme.txt
@@ -49,8 +49,6 @@ Please follow these instructions:
    need to repeat step 6.
 
 
-Known issue: By default, there is no .jpg/.gif avatar support in the svn build.
-
 /***************************************************************************
  *   Copyright (C) 2008-2009 by Lothar May                                 *
  *                                                                         *