diff --git a/skins/default/iehacks.css b/skins/default/iehacks.css
index 0475bbc65..d55d09cfa 100644
--- a/skins/default/iehacks.css
+++ b/skins/default/iehacks.css
@@ -74,12 +74,22 @@ input, textarea
   height: expression(parseInt(this.parentNode.offsetHeight)+'px');
 }
 
+#mailleftcontainer
+{
+  height: expression(parseInt(this.parentNode.offsetHeight)+'px');
+}
+
 #mailrightcontainer
 {
   width: expression((parseInt(this.parentNode.offsetWidth)-170)+'px');
   height: expression(parseInt(this.parentNode.offsetHeight)+'px');
 }
 
+#mailrightcontent
+{
+  width: 100%;
+}
+
 #messagepartcontainer
 {
   width: expression((parseInt(document.documentElement.clientWidth)-40)+'px');