Bugfix - abandoned ISABus mutex deadlock (#51)

Hardware/Ring0.cs

@@ -1,4 +1,4 @@
-/*
+/*
  
   This Source Code Form is subject to the terms of the Mozilla Public
   License, v. 2.0. If a copy of the MPL was not distributed with this
@@ -271,7 +271,7 @@ namespace OpenHardwareMonitor.Hardware {
         return true;
       try {
         return isaBusMutex.WaitOne(millisecondsTimeout, false);
-      } catch (AbandonedMutexException) { return false; } 
+      } catch (AbandonedMutexException) { return true; }
         catch (InvalidOperationException) { return false; }
     }