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diff --git a/polyglot.man b/polyglot.man
index c6f8e49..f08b13e 100644
--- a/polyglot.man
+++ b/polyglot.man
@@ -129,7 +129,7 @@
 .\" ========================================================================
 .\"
 .IX Title "POLYGLOT 6"
-.TH POLYGLOT 6 "2009-08-07" "" ""
+.TH POLYGLOT 6 "2009-08-13" "" ""
 .SH "NAME"
 PolyGlot \-  Winboard protocol to UCI protocol adapter
          \-  book engine for Polyglot books 
@@ -492,10 +492,16 @@ does not matter.
 .IX Item "BookRandom (default: true)"
 Select moves according to their weights in the book. If false the move
 with the highest weight is selected. 
-.IP "\fBBookLearn\fR (default: false)" 4
-.IX Item "BookLearn (default: false)"
-Record learning information in the opening book. Naturally this requires
-the opening book to be writable. 
+.IP "\fBBookRandom\fR (default: true)" 4
+.IX Item "BookRandom (default: true)"
+Select moves according to their weights in the book. If false the move
+with the highest weight is selected. 
+.IP "\fBBookDepth\fR (default: 256)" 4
+.IX Item "BookDepth (default: 256)"
+Stop using the book after this number of moves. 
+.IP "\fBBookTreshold\fR (default: 5)" 4
+.IX Item "BookTreshold (default: 5)"
+Do not play moves with a weight (probability) lower than this (in per mil). 
 .IP "\fBUseNice\fR (default: false)" 4
 .IX Item "UseNice (default: false)"
 Run the engine at nice level 5, or \*(L"NiceValue\*(R" if it set.  On some
@@ -554,13 +560,18 @@ When RepeatPV is false PolyGlot does not repeat the last pv string.
 Due to the way kibitzing is implemented, KibitzMove is disabled in that case. 
 .IP "\fBWbWorkArounds\fR (default: true)" 4
 .IX Item "WbWorkArounds (default: true)"
-The intention of this option is to provide work arounds for
-xboard/winboard bugs should they arise.  Currently it decapitalizes
+The intention of these options is to provide work arounds for
+xboard/winboard bugs should they arise.  This one decapitalizes
 the word Draw in options that contain this word. Some versions of
 xboard/winboard contain a bug which causes such options to be
 interpreted as draw claims by the engine.
 .Sp
 Engines that send options with \*(L"Draw\*(R" in their name are Rybka and \s-1HIARCS\s0. 
+.IP "\fBWbWorkArounds2\fR (default: false)" 4
+.IX Item "WbWorkArounds2 (default: false)"
+Old version of Winboard clear the engine output window at depth 1. With this
+work around \s-1PG\s0 will send info lines at depth >=2. This may or may not improve
+the display. 
 .Sh "[Engine] section"
 .IX Subsection "[Engine] section"
 This section contains engine \s-1UCI\s0 options.  PolyGlot does not