diff -r 87ccb567fae7 -r d83e927ee9d2 Hardware/Ring0.cs
--- a/Hardware/Ring0.cs	Tue Mar 15 17:33:13 2011 +0000
+++ b/Hardware/Ring0.cs	Tue Mar 15 17:55:11 2011 +0000
@@ -142,7 +142,7 @@
       if (!driver.IsOpen) 
         driver = null;
 
-      isaBusMutex = new Mutex(false, "Access_ISABUS.HTP.Method");
+      isaBusMutex = new Mutex(false, "Global\\Access_ISABUS.HTP.Method");
     }
 
     public static bool IsOpen {