diff -r fbf22ccd9d6f -r 0ee888c485d5 Hardware/Mainboard/MainboardGroup.cs
--- a/Hardware/Mainboard/MainboardGroup.cs	Tue Sep 21 10:33:28 2010 +0000
+++ b/Hardware/Mainboard/MainboardGroup.cs	Tue Sep 21 20:32:36 2010 +0000
@@ -38,7 +38,7 @@
 namespace OpenHardwareMonitor.Hardware.Mainboard {
   internal class MainboardGroup : IGroup {
 
-    private Mainboard[] mainboards;
+    private readonly Mainboard[] mainboards;
 
     public MainboardGroup(ISettings settings) {
       mainboards = new Mainboard[1];