diff --git a/doc/Manual.html b/doc/Manual.html
index 3449a5b970..ce7580cc97 100644
--- a/doc/Manual.html
+++ b/doc/Manual.html
@@ -22,7 +22,7 @@
 
 <CENTER><H3>LAMMPS Documentation 
 </H3></CENTER>
-<CENTER>(7 Jul 2009 version of LAMMPS) 
+<CENTER>(15 Jan 2010 version of LAMMPS) 
 </CENTER>
 <P>LAMMPS stands for Large-scale Atomic/Molecular Massively Parallel
 Simulator.
diff --git a/doc/Manual.pdf b/doc/Manual.pdf
index e5a2a4ace4..0c8e0b53fa 100644
Binary files a/doc/Manual.pdf and b/doc/Manual.pdf differ
diff --git a/doc/Manual.txt b/doc/Manual.txt
index e1e38e3e29..ef575cab1b 100644
--- a/doc/Manual.txt
+++ b/doc/Manual.txt
@@ -19,7 +19,7 @@
 
 LAMMPS Documentation :c,h3
 
-(7 Jul 2009 version of LAMMPS) :c
+(15 Jan 2010 version of LAMMPS) :c
 
 LAMMPS stands for Large-scale Atomic/Molecular Massively Parallel
 Simulator.
diff --git a/doc/Section_errors.html b/doc/Section_errors.html
index 2ce7ed6013..031f53387a 100644
--- a/doc/Section_errors.html
+++ b/doc/Section_errors.html
@@ -874,10 +874,6 @@ setting in order to use a middle setting.
 <DD>The kspace style pppm cannot be used in 2d simulations.  You can use
 2d PPPM in a 3d simulation; see the kspace_modify command. 
 
-<DT><I>Cannot use PRD command with multi-proc replicas unless atom map exists</I> 
-
-<DD>Use the atom_modify command to create an atom map. 
-
 <DT><I>Cannot use PRD with a time-dependent fix defined</I> 
 
 <DD>PRD alters the timestep in ways that will mess up these fixes. 
@@ -886,6 +882,15 @@ setting in order to use a middle setting.
 
 <DD>PRD alters the timestep in ways that will mess up these regions. 
 
+<DT><I>Cannot use PRD with atom_modify sort enabled</I> 
+
+<DD>This is a current restriction of PRD.  You must turn off sorting,
+which is enabled by default, via the atom_modify command. 
+
+<DT><I>Cannot use PRD with multi-proc replicas unless atom map exists</I> 
+
+<DD>Use the atom_modify command to create an atom map. 
+
 <DT><I>Cannot use delete_atoms unless atoms have IDs</I> 
 
 <DD>Your atoms do not have IDs, so the delete_atoms command cannot be
diff --git a/doc/Section_errors.txt b/doc/Section_errors.txt
index ce04ebbe4c..c7dde9518d 100644
--- a/doc/Section_errors.txt
+++ b/doc/Section_errors.txt
@@ -871,10 +871,6 @@ This feature is not yet supported. :dd
 The kspace style pppm cannot be used in 2d simulations.  You can use
 2d PPPM in a 3d simulation; see the kspace_modify command. :dd
 
-{Cannot use PRD command with multi-proc replicas unless atom map exists} :dt
-
-Use the atom_modify command to create an atom map. :dd
-
 {Cannot use PRD with a time-dependent fix defined} :dt
 
 PRD alters the timestep in ways that will mess up these fixes. :dd
@@ -883,6 +879,15 @@ PRD alters the timestep in ways that will mess up these fixes. :dd
 
 PRD alters the timestep in ways that will mess up these regions. :dd
 
+{Cannot use PRD with atom_modify sort enabled} :dt
+
+This is a current restriction of PRD.  You must turn off sorting,
+which is enabled by default, via the atom_modify command. :dd
+
+{Cannot use PRD with multi-proc replicas unless atom map exists} :dt
+
+Use the atom_modify command to create an atom map. :dd
+
 {Cannot use delete_atoms unless atoms have IDs} :dt
 
 Your atoms do not have IDs, so the delete_atoms command cannot be