diff -ur phpBB3.orig//styles/prosilver/template/overall_header.html phpBB3.patch//styles/prosilver/template/overall_header.html
--- phpBB3.orig//styles/prosilver/template/overall_header.html	2010-11-19 13:22:36.000000000 +0100
+++ phpBB3.patch//styles/prosilver/template/overall_header.html	2011-02-02 12:37:13.542196322 +0100
@@ -11,7 +11,6 @@
 <meta name="copyright" content="2000, 2002, 2005, 2007 phpBB Group" />
 <meta name="keywords" content="" />
 <meta name="description" content="" />
-<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7; IE=EmulateIE9" />
 {META}
 <title>{SITENAME} &bull; <!-- IF S_IN_MCP -->{L_MCP} &bull; <!-- ELSEIF S_IN_UCP -->{L_UCP} &bull; <!-- ENDIF -->{PAGE_TITLE}</title>
 
diff -ur phpBB3.orig//styles/prosilver/template/posting_editor.html phpBB3.patch//styles/prosilver/template/posting_editor.html
--- phpBB3.orig//styles/prosilver/template/posting_editor.html	2010-11-19 13:22:36.000000000 +0100
+++ phpBB3.patch//styles/prosilver/template/posting_editor.html	2011-02-02 12:45:03.132196322 +0100
@@ -141,8 +141,8 @@
 		<!-- ENDIF -->
 	</div>
 
-	<div id="message-box">
-		<textarea <!-- IF S_UCP_ACTION and not S_PRIVMSGS and not S_EDIT_DRAFT -->name="signature" id="signature" style="height: 9em;"<!-- ELSE -->name="message" id="message"<!-- ENDIF --> rows="15" cols="76" tabindex="4" onselect="storeCaret(this);" onclick="storeCaret(this);" onkeyup="storeCaret(this);" onfocus="initInsertions();" class="inputbox">{MESSAGE}{DRAFT_MESSAGE}{SIGNATURE}</textarea>
+	<div id="message-box"<!-- IF S_UCP_ACTION and not S_PRIVMSGS and not S_EDIT_DRAFT --> style="height: 9em;"<!-- ENDIF -->>
+		<textarea <!-- IF S_UCP_ACTION and not S_PRIVMSGS and not S_EDIT_DRAFT -->name="signature" id="signature"<!-- ELSE -->name="message" id="message"<!-- ENDIF --> rows="15" cols="76" tabindex="4" onselect="storeCaret(this);" onclick="storeCaret(this);" onkeyup="storeCaret(this);" onfocus="initInsertions();" class="inputbox">{MESSAGE}{DRAFT_MESSAGE}{SIGNATURE}</textarea>
 	</div>
 </fieldset>
 
@@ -263,4 +263,4 @@
 		</fieldset>
 		<!-- ENDIF -->
 
-<!-- ENDIF -->
\ Kein Zeilenumbruch am Dateiende.
+<!-- ENDIF -->
diff -ur phpBB3.orig//styles/prosilver/template/quickreply_editor.html phpBB3.patch//styles/prosilver/template/quickreply_editor.html
--- phpBB3.orig//styles/prosilver/template/quickreply_editor.html	2010-11-19 13:22:36.000000000 +0100
+++ phpBB3.patch//styles/prosilver/template/quickreply_editor.html	2011-02-02 12:45:22.002196322 +0100
@@ -53,8 +53,8 @@
 						<dt><label for="subject">{L_SUBJECT}:</label></dt>
 						<dd><input type="text" name="subject" id="subject" size="45" maxlength="64" tabindex="2" value="{SUBJECT}" class="inputbox autowidth" /></dd>
 					</dl>
-				<div id="message-box">
-					<textarea style="height: 9em;" name="message" rows="7" cols="76" tabindex="3" class="inputbox"></textarea>
+				<div id="message-box" style="height: 9em;">
+					<textarea name="message" rows="7" cols="76" tabindex="3" class="inputbox"></textarea>
 				</div>
 				</fieldset>
 				<fieldset class="submit-buttons">
diff -ur phpBB3.orig//styles/prosilver/theme/forms.css phpBB3.patch//styles/prosilver/theme/forms.css
--- phpBB3.orig//styles/prosilver/theme/forms.css	2010-11-19 13:22:36.000000000 +0100
+++ phpBB3.patch//styles/prosilver/theme/forms.css	2011-02-02 12:46:31.982196322 +0100
@@ -257,13 +257,20 @@
 
 /* Main message box */
 #message-box {
+	position: relative;
 	width: 80%;
+	font-size: 1.2em;
+	height: 22.5em;
+	border: 3px solid transparent; /* border + padding textarea */
 }
 
 #message-box textarea {
+	position: absolute;
+	left: -3px; /* minus border #message-box */
+	top: -3px;	/* minus border #message-box */
 	font-family: "Trebuchet MS", Verdana, Helvetica, Arial, sans-serif;
 	width: 100%;
-	font-size: 1.2em;
+	height: 100%;
 	color: #333333;
 }