diff --git a/config.h b/config.h
index dfc4329..035fcc6 100644
--- a/config.h
+++ b/config.h
@@ -132,7 +132,7 @@
 #define STDC_HEADERS 1
 
 /* Most recent revision number in the version control system */
-#define VCS_REVISION "132"
+#define VCS_REVISION "133"
 
 /* Version number of package */
 #define VERSION "2.8"
diff --git a/configure b/configure
index c314390..62bf430 100755
--- a/configure
+++ b/configure
@@ -2037,7 +2037,7 @@ ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 
-VCS_REVISION=132
+VCS_REVISION=133
 
 
 cat >>confdefs.h <<_ACEOF
diff --git a/configure.ac b/configure.ac
index 68e6c7e..cc42ad4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@ AC_PREREQ(2.57)
 
 dnl This is the one location where the authoritative version number is stored
 AC_INIT(shellinabox, 2.8, markus@shellinabox.com)
-VCS_REVISION=132
+VCS_REVISION=133
 AC_SUBST(VCS_REVISION)
 AC_DEFINE_UNQUOTED(VCS_REVISION, "${VCS_REVISION}",
                    [Most recent revision number in the version control system])
diff --git a/demo/vt100.js b/demo/vt100.js
index b8b7653..603d1ae 100644
--- a/demo/vt100.js
+++ b/demo/vt100.js
@@ -1500,7 +1500,7 @@ VT100.prototype.toggleBell = function() {
 };
 
 VT100.prototype.about = function() {
-  alert("VT100 Terminal Emulator " + "2.8 (revision 132)" +
+  alert("VT100 Terminal Emulator " + "2.8 (revision 133)" +
         "\nCopyright 2008-2009 by Markus Gutschke\n" +
         "For more information check http://shellinabox.com");
 };
@@ -1840,6 +1840,20 @@ VT100.prototype.checkComposedKeys = function(event) {
 };
 
 VT100.prototype.fixEvent = function(event) {
+  // Some browsers report AltGR as a combination of ALT and CTRL. As AltGr
+  // is used as a second-level selector, clear the modifier bits before
+  // handling the event.
+  if (event.ctrlKey && event.altKey) {
+    var fake                = [ ];
+    fake.charCode           = event.charCode;
+    fake.keyCode            = event.keyCode;
+    fake.ctrlKey            = false;
+    fake.shiftKey           = event.shiftKey;
+    fake.altKey             = false;
+    fake.metaKey            = event.metaKey;
+    return fake;
+  }
+
   // Some browsers fail to translate keys, if both shift and alt/meta is
   // pressed at the same time. We try to translate those cases, but that
   // only works for US keyboard layouts.
@@ -1939,7 +1953,11 @@ VT100.prototype.keyDown = function(event) {
   // In fact, we see them, but we cannot stop IE from seeing them, too.
   if ((event.charCode || event.keyCode) &&
       ((alphNumKey && (event.ctrlKey || event.altKey || event.metaKey) &&
-        !event.shiftKey) ||
+        !event.shiftKey &&
+        // Some browsers signal AltGR as both CTRL and ALT. Do not try to
+        // interpret this sequence ourselves, as some keyboard layouts use
+        // it for second-level layouts.
+        !(event.ctrlKey && event.altKey)) ||
        this.catchModifiersEarly && normalKey && !alphNumKey &&
        (event.ctrlKey || event.altKey || event.metaKey) ||
        !normalKey)) {
diff --git a/shellinabox/shell_in_a_box.js b/shellinabox/shell_in_a_box.js
index 4268e78..a248167 100644
--- a/shellinabox/shell_in_a_box.js
+++ b/shellinabox/shell_in_a_box.js
@@ -355,7 +355,7 @@ ShellInABox.prototype.extendContextMenu = function(entries, actions) {
 };
 
 ShellInABox.prototype.about = function() {
-  alert("Shell In A Box version " + "2.8 (revision 132)" +
+  alert("Shell In A Box version " + "2.8 (revision 133)" +
         "\nCopyright 2008-2009 by Markus Gutschke\n" +
         "For more information check http://shellinabox.com" +
         (typeof serverSupportsSSL != 'undefined' && serverSupportsSSL ?
diff --git a/shellinabox/vt100.js b/shellinabox/vt100.js
index b8b7653..603d1ae 100644
--- a/shellinabox/vt100.js
+++ b/shellinabox/vt100.js
@@ -1500,7 +1500,7 @@ VT100.prototype.toggleBell = function() {
 };
 
 VT100.prototype.about = function() {
-  alert("VT100 Terminal Emulator " + "2.8 (revision 132)" +
+  alert("VT100 Terminal Emulator " + "2.8 (revision 133)" +
         "\nCopyright 2008-2009 by Markus Gutschke\n" +
         "For more information check http://shellinabox.com");
 };
@@ -1840,6 +1840,20 @@ VT100.prototype.checkComposedKeys = function(event) {
 };
 
 VT100.prototype.fixEvent = function(event) {
+  // Some browsers report AltGR as a combination of ALT and CTRL. As AltGr
+  // is used as a second-level selector, clear the modifier bits before
+  // handling the event.
+  if (event.ctrlKey && event.altKey) {
+    var fake                = [ ];
+    fake.charCode           = event.charCode;
+    fake.keyCode            = event.keyCode;
+    fake.ctrlKey            = false;
+    fake.shiftKey           = event.shiftKey;
+    fake.altKey             = false;
+    fake.metaKey            = event.metaKey;
+    return fake;
+  }
+
   // Some browsers fail to translate keys, if both shift and alt/meta is
   // pressed at the same time. We try to translate those cases, but that
   // only works for US keyboard layouts.
@@ -1939,7 +1953,11 @@ VT100.prototype.keyDown = function(event) {
   // In fact, we see them, but we cannot stop IE from seeing them, too.
   if ((event.charCode || event.keyCode) &&
       ((alphNumKey && (event.ctrlKey || event.altKey || event.metaKey) &&
-        !event.shiftKey) ||
+        !event.shiftKey &&
+        // Some browsers signal AltGR as both CTRL and ALT. Do not try to
+        // interpret this sequence ourselves, as some keyboard layouts use
+        // it for second-level layouts.
+        !(event.ctrlKey && event.altKey)) ||
        this.catchModifiersEarly && normalKey && !alphNumKey &&
        (event.ctrlKey || event.altKey || event.metaKey) ||
        !normalKey)) {
diff --git a/shellinabox/vt100.jspp b/shellinabox/vt100.jspp
index 7c59a03..cf02eca 100644
--- a/shellinabox/vt100.jspp
+++ b/shellinabox/vt100.jspp
@@ -1840,6 +1840,20 @@ VT100.prototype.checkComposedKeys = function(event) {
 };
 
 VT100.prototype.fixEvent = function(event) {
+  // Some browsers report AltGR as a combination of ALT and CTRL. As AltGr
+  // is used as a second-level selector, clear the modifier bits before
+  // handling the event.
+  if (event.ctrlKey && event.altKey) {
+    var fake                = [ ];
+    fake.charCode           = event.charCode;
+    fake.keyCode            = event.keyCode;
+    fake.ctrlKey            = false;
+    fake.shiftKey           = event.shiftKey;
+    fake.altKey             = false;
+    fake.metaKey            = event.metaKey;
+    return fake;
+  }
+
   // Some browsers fail to translate keys, if both shift and alt/meta is
   // pressed at the same time. We try to translate those cases, but that
   // only works for US keyboard layouts.
@@ -1939,7 +1953,11 @@ VT100.prototype.keyDown = function(event) {
   // In fact, we see them, but we cannot stop IE from seeing them, too.
   if ((event.charCode || event.keyCode) &&
       ((alphNumKey && (event.ctrlKey || event.altKey || event.metaKey) &&
-        !event.shiftKey) ||
+        !event.shiftKey &&
+        // Some browsers signal AltGR as both CTRL and ALT. Do not try to
+        // interpret this sequence ourselves, as some keyboard layouts use
+        // it for second-level layouts.
+        !(event.ctrlKey && event.altKey)) ||
        this.catchModifiersEarly && normalKey && !alphNumKey &&
        (event.ctrlKey || event.altKey || event.metaKey) ||
        !normalKey)) {