diff -r 6a6718269c22 -r 3efe0210e27e ui/wpf/UIcore/TextArea.cs
--- a/ui/wpf/UIcore/TextArea.cs	Wed Jan 20 17:37:52 2016 +0100
+++ b/ui/wpf/UIcore/TextArea.cs	Thu Jan 21 20:40:14 2016 +0100
@@ -19,6 +19,11 @@
                 HorizontalScrollBarVisibility = System.Windows.Controls.ScrollBarVisibility.Auto;
                 fill = true;
             }
+            else
+            {
+                HorizontalScrollBarVisibility = System.Windows.Controls.ScrollBarVisibility.Auto;
+                MinWidth = 15;
+            }
 
             if (text != null)
             {