diff --git a/retroshare-gui/src/gui/gxs/GxsCreateCommentDialog.cpp b/retroshare-gui/src/gui/gxs/GxsCreateCommentDialog.cpp
index d823414de..ff31b10d9 100644
--- a/retroshare-gui/src/gui/gxs/GxsCreateCommentDialog.cpp
+++ b/retroshare-gui/src/gui/gxs/GxsCreateCommentDialog.cpp
@@ -26,6 +26,8 @@
 #include <QMessageBox>
 #include <iostream>
 
+static const uint32_t MAX_ALLOWED_GXS_MESSAGE_SIZE = 199000;
+
 GxsCreateCommentDialog::GxsCreateCommentDialog(RsGxsCommentService *service,  const RsGxsGrpMsgIdPair &parentId, const RsGxsMessageId& threadId, const RsGxsId& default_author,QWidget *parent) :
 	QDialog(parent),
 	ui(new Ui::GxsCreateCommentDialog), mCommentService(service), mParentId(parentId), mThreadId(threadId)
@@ -33,9 +35,10 @@ GxsCreateCommentDialog::GxsCreateCommentDialog(RsGxsCommentService *service,  co
 	ui->setupUi(this);
 	connect(ui->postButton, SIGNAL(clicked()), this, SLOT(createComment()));
 	connect(ui->cancelButton, SIGNAL(clicked()), this, SLOT(close()));
+	connect(ui->commentTextEdit, SIGNAL(textChanged()), this, SLOT(checkLength()));
 
 	/* fill in the available OwnIds for signing */
-    ui->idChooser->loadIds(IDCHOOSER_ID_REQUIRED, default_author);
+	ui->idChooser->loadIds(IDCHOOSER_ID_REQUIRED, default_author);
 }
 
 void GxsCreateCommentDialog::loadComment(const QString &msgText, const QString &msgAuthor, const RsGxsId &msgAuthorId)
@@ -105,3 +108,19 @@ GxsCreateCommentDialog::~GxsCreateCommentDialog()
 {
 	delete ui;
 }
+
+void GxsCreateCommentDialog::checkLength(){
+	QString text;
+	RsHtml::optimizeHtml(ui->commentTextEdit, text);
+	std::wstring msg = text.toStdWString();
+	int charRemains = MAX_ALLOWED_GXS_MESSAGE_SIZE - msg.length();
+	if(charRemains >= 0) {
+		text = tr("It remains %1 characters after HTML conversion.").arg(charRemains);
+		ui->infoLabel->setStyleSheet("QLabel#infoLabel { }");
+	}else{
+		text = tr("Warning: This message is too big of %1 characters after HTML conversion.").arg((0-charRemains));
+		ui->infoLabel->setStyleSheet("QLabel#infoLabel {color: red; font: bold; }");
+	}
+	ui->postButton->setEnabled(charRemains>=0);
+	ui->infoLabel->setText(text);
+}
\ No newline at end of file
diff --git a/retroshare-gui/src/gui/gxs/GxsCreateCommentDialog.h b/retroshare-gui/src/gui/gxs/GxsCreateCommentDialog.h
index ce394bf5e..1f38e2a98 100644
--- a/retroshare-gui/src/gui/gxs/GxsCreateCommentDialog.h
+++ b/retroshare-gui/src/gui/gxs/GxsCreateCommentDialog.h
@@ -43,7 +43,8 @@ public:
 	
 private slots:
 	void createComment();
-	
+	void checkLength();
+
 private:
 	Ui::GxsCreateCommentDialog *ui;
 	RsGxsCommentService *mCommentService;
diff --git a/retroshare-gui/src/gui/gxs/GxsCreateCommentDialog.ui b/retroshare-gui/src/gui/gxs/GxsCreateCommentDialog.ui
index 1825bcf55..46b547412 100644
--- a/retroshare-gui/src/gui/gxs/GxsCreateCommentDialog.ui
+++ b/retroshare-gui/src/gui/gxs/GxsCreateCommentDialog.ui
@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>459</width>
-    <height>324</height>
+    <width>505</width>
+    <height>367</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -32,7 +32,7 @@
    <item row="0" column="0">
     <widget class="QFrame" name="frame">
      <property name="sizePolicy">
-      <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+      <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
        <horstretch>0</horstretch>
        <verstretch>0</verstretch>
       </sizepolicy>
@@ -142,17 +142,20 @@ p, li { white-space: pre-wrap; }
       <property name="topMargin">
        <number>6</number>
       </property>
-      <item row="0" column="0">
-       <widget class="GxsIdLabel" name="replaytolabel">
-        <property name="styleSheet">
-         <string notr="true"/>
+      <item row="5" column="0">
+       <spacer name="horizontalSpacer">
+        <property name="orientation">
+         <enum>Qt::Horizontal</enum>
         </property>
-        <property name="text">
-         <string/>
+        <property name="sizeHint" stdset="0">
+         <size>
+          <width>276</width>
+          <height>20</height>
+         </size>
         </property>
-       </widget>
+       </spacer>
       </item>
-      <item row="1" column="0" colspan="3">
+      <item row="2" column="0" colspan="3">
        <widget class="MimeTextEdit" name="commentTextEdit">
         <property name="styleSheet">
          <string notr="true"/>
@@ -162,7 +165,21 @@ p, li { white-space: pre-wrap; }
         </property>
        </widget>
       </item>
-      <item row="2" column="0" colspan="3">
+      <item row="5" column="2">
+       <widget class="QPushButton" name="cancelButton">
+        <property name="text">
+         <string>Cancel</string>
+        </property>
+       </widget>
+      </item>
+      <item row="3" column="0">
+       <widget class="QLabel" name="infoLabel">
+        <property name="text">
+         <string>TextLabel</string>
+        </property>
+       </widget>
+      </item>
+      <item row="4" column="0" colspan="3">
        <layout class="QHBoxLayout" name="signedHLayout">
         <item>
          <widget class="QLabel" name="signedLabel">
@@ -186,30 +203,26 @@ p, li { white-space: pre-wrap; }
         </item>
        </layout>
       </item>
-      <item row="3" column="0">
-       <spacer name="horizontalSpacer">
-        <property name="orientation">
-         <enum>Qt::Horizontal</enum>
-        </property>
-        <property name="sizeHint" stdset="0">
-         <size>
-          <width>276</width>
-          <height>20</height>
-         </size>
-        </property>
-       </spacer>
-      </item>
-      <item row="3" column="1">
+      <item row="5" column="1">
        <widget class="QPushButton" name="postButton">
         <property name="text">
          <string>Post</string>
         </property>
        </widget>
       </item>
-      <item row="3" column="2">
-       <widget class="QPushButton" name="cancelButton">
+      <item row="0" column="0" colspan="3">
+       <widget class="GxsIdLabel" name="replaytolabel">
+        <property name="sizePolicy">
+         <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+          <horstretch>0</horstretch>
+          <verstretch>0</verstretch>
+         </sizepolicy>
+        </property>
+        <property name="styleSheet">
+         <string notr="true"/>
+        </property>
         <property name="text">
-         <string>Cancel</string>
+         <string/>
         </property>
        </widget>
       </item>
diff --git a/retroshare-gui/src/gui/qss/stylesheet/Standard.qss b/retroshare-gui/src/gui/qss/stylesheet/Standard.qss
index 54c501504..50ae5b314 100644
--- a/retroshare-gui/src/gui/qss/stylesheet/Standard.qss
+++ b/retroshare-gui/src/gui/qss/stylesheet/Standard.qss
@@ -188,7 +188,7 @@ ShareManager QPushButton#addButton:hover {
 }
 
 CreateGxsForumMsg QPushButton#postButton:disabled, PostedCreatePostDialog QPushButton#submitButton:disabled,
-CreateGxsChannelMsg QPushButton#postButton:disabled {
+CreateGxsChannelMsg QPushButton#postButton:disabled, GxsCreateCommentDialog QPushButton#postButton:disabled {
 	font: bold;
 	font-size: 15px;
 	color: white;
diff --git a/retroshare-gui/src/qss/qdarkstyle-v2.qss b/retroshare-gui/src/qss/qdarkstyle-v2.qss
index 5f541b007..0040d2cb6 100644
--- a/retroshare-gui/src/qss/qdarkstyle-v2.qss
+++ b/retroshare-gui/src/qss/qdarkstyle-v2.qss
@@ -2110,7 +2110,7 @@ GxsCreateCommentDialog QPushButton#postButton:hover, , GxsGroupDialog QPushButto
 }
 
 CreateGxsForumMsg QPushButton#postButton:disabled, PostedCreatePostDialog QPushButton#submitButton:disabled,
-CreateGxsChannelMsg QPushButton#postButton:disabled {
+CreateGxsChannelMsg QPushButton#postButton:disabled, GxsCreateCommentDialog QPushButton#postButton:disabled {
 	font: bold;
 	font-size: 15px;
 	color: white;
diff --git a/retroshare-gui/src/qss/qdarkstyle.qss b/retroshare-gui/src/qss/qdarkstyle.qss
index 97c078c02..6e37f3a82 100644
--- a/retroshare-gui/src/qss/qdarkstyle.qss
+++ b/retroshare-gui/src/qss/qdarkstyle.qss
@@ -1263,7 +1263,7 @@ ShareManager QPushButton#closeButton {
 }
 
 CreateGxsForumMsg QPushButton#postButton:disabled, PostedCreatePostDialog QPushButton#submitButton:disabled,
-CreateGxsChannelMsg QPushButton#postButton:disabled {
+CreateGxsChannelMsg QPushButton#postButton:disabled, GxsCreateCommentDialog QPushButton#postButton:disabled {
 	font: bold;
 	font-size: 15px;
 	color: white;