diff -r 21504f47aedf -r 96263190189a Hardware/ATI/ATIGPU.cs
--- a/Hardware/ATI/ATIGPU.cs	Sat Jun 04 13:27:11 2011 +0000
+++ b/Hardware/ATI/ATIGPU.cs	Sun Jun 19 12:41:18 2011 +0000
@@ -208,12 +208,13 @@
       }
     }
 
-    public void Close() {
+    public override void Close() {
       this.fanControl.ControlModeChanged -= ControlModeChanged;
       this.fanControl.SoftwareControlValueChanged -=
         SoftwareControlValueChanged;
 
       RestoreDefaultFanSpeed();
+      base.Close();
     }
   }
 }