Mail and news prefs not painting properly (by John Morrison, 47813). r=blake sr=hewitt

themes/blue/messenger/pref-mailnews.css

@@ -1,10 +0,0 @@
-
-#classic
-  {
-    list-style-image : url("chrome://messenger/skin/winclassic.gif");
-  }
-
-#wide
-  {
-    list-style-image : url("chrome://messenger/skin/winwide.gif");
-  }

themes/classic/messenger/mac/pref-mailnews.css

@@ -1,10 +0,0 @@
-
-#classic
-  {
-    list-style-image : url("chrome://messenger/skin/winclassic.gif");
-  }
-
-#wide
-  {
-    list-style-image : url("chrome://messenger/skin/winwide.gif");
-  }

themes/classic/messenger/win/pref-mailnews.css

@@ -1,10 +0,0 @@
-
-#classic
-  {
-    list-style-image : url("chrome://messenger/skin/winclassic.gif");
-  }
-
-#wide
-  {
-    list-style-image : url("chrome://messenger/skin/winwide.gif");
-  }

themes/modern/messenger/pref-mailnews.css

@@ -2,10 +2,12 @@
 #classic
   {
     list-style-image : url("chrome://messenger/skin/winclassic.gif");
+    min-height       : 32px;  /* pre-allocate a height for this image */
   }
 
 #wide
   {
     list-style-image : url("chrome://messenger/skin/winwide.gif");
+    min-height       : 32px;  /* pre-allocate a height for this image */
   }