diff --git a/general/docs/microsoft-release.txt b/general/docs/microsoft-release.txt
index f665aa5380b15165e7bf1e7f5c27401390f873a7..de3fe941f399a11fef5361193858c0196019562a 100644
--- a/general/docs/microsoft-release.txt
+++ b/general/docs/microsoft-release.txt
@@ -216,6 +216,7 @@ Version 1.5.0 - 11 May 2015
   - Improvements to the Decompose Proof command.
   - Improvements to the TLC Errors view, including ability to
     show trace in reverse order.
+  - Has some changes to the way the Toolbox handles its subwindows.
   - Fixes all known bugs in TLC's liveness checking.
   - Fixes bug in TLC that caused infinite looping if a recursively
     defined operator is used as an operator argument in its own
diff --git a/org.lamport.tla.toolbox.doc/html/prover/prover.html b/org.lamport.tla.toolbox.doc/html/prover/prover.html
index d644d3bdcbe8584c3a437117a903ca8effbbd4fd..9afb9931eae43d18ab324a11e9fc26a52bf92f5a 100644
--- a/org.lamport.tla.toolbox.doc/html/prover/prover.html
+++ b/org.lamport.tla.toolbox.doc/html/prover/prover.html
@@ -1,80 +1,80 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
-<!-- This is file org.lamport.tla.toobox.doc/html/prover/prover.html -->
-<html>
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
- <LINK href="../style.css" rel="stylesheet" type="text/css">
-
-	<title>Proofs</title>
-</head>
-<!-- a comment -->
-
-<body>
-<h1>Proofs</h1>
-
-<p>
-The current version of the TLA+ language contains
-several features not described in 
-   <em><a href=
-    "http://research.microsoft.com/en-us/um/people/lamport/tla/book.html" 
-     target="_blank">
-   Specifying Systems</a></em>.&nbsp;  
-
-Chief among them are constructs for writing hierarchically structured
-proofs.&nbsp;
-
-The differences between the current and previous versions of TLA, including
-the  proof language, are described
-  <a href="http://research.microsoft.com/en-us/um/people/lamport/tla/tla2.html"
-    target="_blank">here</a>.&nbsp;  
-</p>
-
-<p>
-
-The Toolbox aids reading and writing hierarchically structured TLA+ proofs
-by providing commands to view just the part of the structure that you
-want to see.&nbsp;
-
-These commands are described in the subtopic
-<A href="reading.html">Viewing and Editing Structured
-Proofs</A>.
-</p>
-
-<p>
-TLAPS, the TLA+ Proof System, can be used to mechanically 
-check TLA+ proofs.&nbsp; 
-
-You can select the parts of a proof to be checked, and you can have the
-Toolbox  display which steps' proofs have and have not been
-checked.&nbsp;
-
-The <a href="runningTlaps.html">Running TLAPS</a> subtopic
-describes how to run it from the Toolbox.&nbsp;
-
-But before you can run TLAPS, you must install it on your computer.&nbsp;
-
-Instructions for doing this, as well as an explanation of how to use
-TLAPS, is on 
-<A href="http://msr-inria.inria.fr/~doligez/tlaps/" target="_blank">the TLAPS
-web page</A>.&nbsp; 
-
-As described on that page, if you are using Windows, you will also have
-to install 
-<a href="http://www.cygwin.com/" target="_blank">Cygwin</a> on your computer.
-</p>
-
-<p>
-When using TLAPS, you will need to use the module <code>TLAPS.tla</code> and perhaps other
-TLAPS library modules.&nbsp;  The TLAPS download page will tell you in what
-folder (directory) those modules are.&nbsp;  The  
-<a href="../gettingstarted/tla-preferences.html#library-folders">TLA+ Preferences</a> page will allow
-you to declare that modules from that folder should be usable in your specifications.
-</p>
-<dl>
-<hr><dt><b><font color=#0000c0>Subtopics</font></b></dt>
-<dd> <A href="reading.html">Viewing and Editing Structured Proofs</A></dd>
-<dd> <A href="runningTlaps.html">Running TLAPS</A></dd>
-</dl> 
-<a href = "../contents.html">&uarr; TLA+ Toolbox User's Guide</a>
-</hr>
-</body>
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
+<!-- This is file org.lamport.tla.toobox.doc/html/prover/prover.html -->
+<html>
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
+ <LINK href="../style.css" rel="stylesheet" type="text/css">
+
+	<title>Proofs</title>
+</head>
+<!-- a comment -->
+
+<body>
+<h1>Proofs</h1>
+
+<p>
+The current version of the TLA+ language contains
+several features not described in 
+   <em><a href=
+    "http://research.microsoft.com/en-us/um/people/lamport/tla/book.html" 
+     target="_blank">
+   Specifying Systems</a></em>.&nbsp;  
+
+Chief among them are constructs for writing hierarchically structured
+proofs.&nbsp;
+
+The differences between the current and previous versions of TLA, including
+the  proof language, are described
+  <a href="http://research.microsoft.com/en-us/um/people/lamport/tla/tla2.html"
+    target="_blank">here</a>.&nbsp;  
+</p>
+
+<p>
+
+The Toolbox aids reading and writing hierarchically structured TLA+ proofs
+by providing commands to view just the part of the structure that you
+want to see.&nbsp;
+
+These commands are described in the subtopic
+<A href="reading.html">Viewing and Editing Structured
+Proofs</A>.
+</p>
+
+<p>
+TLAPS, the TLA+ Proof System, can be used to mechanically 
+check TLA+ proofs.&nbsp; 
+
+You can select the parts of a proof to be checked, and you can have the
+Toolbox  display which steps' proofs have and have not been
+checked.&nbsp;
+
+The <a href="runningTlaps.html">Running TLAPS</a> subtopic
+describes how to run it from the Toolbox.&nbsp;
+
+But before you can run TLAPS, you must install it on your computer.&nbsp;
+
+Instructions for doing this, as well as an explanation of how to use
+TLAPS,  on 
+<A href="https://tla.msr-inria.inria.fr/tlaps/content/Home.html" target="_blank">the TLAPS
+web page</A>.&nbsp; 
+
+As described on that page, if you are using Windows, you will also have
+to install 
+<a href="http://www.cygwin.com/" target="_blank">Cygwin</a> on your computer.
+</p>
+
+<p>
+When using TLAPS, you will need to use the module <code>TLAPS.tla</code> and perhaps other
+TLAPS library modules.&nbsp;  The TLAPS download page will tell you in what
+folder (directory) those modules are.&nbsp;  The  
+<a href="../gettingstarted/tla-preferences.html#library-folders">TLA+ Preferences</a> page will allow
+you to declare that modules from that folder should be usable in your specifications.
+</p>
+<dl>
+<hr><dt><b><font color=#0000c0>Subtopics</font></b></dt>
+<dd> <A href="reading.html">Viewing and Editing Structured Proofs</A></dd>
+<dd> <A href="runningTlaps.html">Running TLAPS</A></dd>
+</dl> 
+<a href = "../contents.html">&uarr; TLA+ Toolbox User's Guide</a>
+</hr>
+</body>
diff --git a/org.lamport.tla.toolbox.doc/html/prover/runningTlaps.html b/org.lamport.tla.toolbox.doc/html/prover/runningTlaps.html
index 2c33a30883bd87070a995e1ac957786beef09f2a..8598fbe9f5f5f1922a76e6f0e0250a2bdef85c65 100644
--- a/org.lamport.tla.toolbox.doc/html/prover/runningTlaps.html
+++ b/org.lamport.tla.toolbox.doc/html/prover/runningTlaps.html
@@ -393,11 +393,12 @@ This option tells the PM what SMT solver to use.&nbsp;
 
 See the  
 <a href=
-  "http://msr-inria.inria.fr/~doligez/tlaps/advanced-tutorial.html#backends"
- target="_blank">Using different backends</a>
-section of the advanced 
-<a href="http://msr-inria.inria.fr/~doligez/tlaps/"
-   target="_blank">TLAPS documentation</a>.&nbsp;
+  "https://tla.msr-inria.inria.fr/tlaps/content/Documentation/Tutorial/Tactics.html#solvers"
+ target="_blank">SMT solvers</a>
+section of the 
+<a href=
+  "https://tla.msr-inria.inria.fr/tlaps/content/Documentation/Tutorial/Tactics.html"
+ target="_blank">Tactics page</a>.&nbsp;
 
 (This field specifies the argument of the PM's <code>--solver</code>
 option.)