diff --git a/src/AddIns/Misc/Debugger/Debugger.AddIn/Project/Src/Service/DebugeeExceptionForm.cs b/src/AddIns/Misc/Debugger/Debugger.AddIn/Project/Src/Service/DebugeeExceptionForm.cs
index 29b7d5e58f..0df132a20f 100644
--- a/src/AddIns/Misc/Debugger/Debugger.AddIn/Project/Src/Service/DebugeeExceptionForm.cs
+++ b/src/AddIns/Misc/Debugger/Debugger.AddIn/Project/Src/Service/DebugeeExceptionForm.cs
@@ -52,9 +52,7 @@ using ICSharpCode.SharpDevelop.Gui;
 namespace ICSharpCode.SharpDevelop.Services
 {
 	internal sealed partial class DebugeeExceptionForm
-	{		
-		private Result result = Result.Break; // Default
-		
+	{
 		private DebugeeExceptionForm()
 		{
 			InitializeComponent();
diff --git a/src/AddIns/Misc/Debugger/Debugger.AddIn/Project/Src/Service/DebuggerEventForm.cs b/src/AddIns/Misc/Debugger/Debugger.AddIn/Project/Src/Service/DebuggerEventForm.cs
index 872ea29f15..deb5e2b2dc 100644
--- a/src/AddIns/Misc/Debugger/Debugger.AddIn/Project/Src/Service/DebuggerEventForm.cs
+++ b/src/AddIns/Misc/Debugger/Debugger.AddIn/Project/Src/Service/DebuggerEventForm.cs
@@ -48,7 +48,7 @@ namespace ICSharpCode.SharpDevelop.Services
 	{
 		public enum Result {Break, Continue, Terminate};
 		
-		private Result result = Result.Break; // Default
+		protected Result result = Result.Break; // Default
 		
 		protected DebuggerEventForm()
 		{
diff --git a/src/AddIns/Misc/Debugger/Debugger.Core/Project/Src/Expressions/Expression.cs b/src/AddIns/Misc/Debugger/Debugger.Core/Project/Src/Expressions/Expression.cs
index 36575ced58..a9b2063dfc 100644
--- a/src/AddIns/Misc/Debugger/Debugger.Core/Project/Src/Expressions/Expression.cs
+++ b/src/AddIns/Misc/Debugger/Debugger.Core/Project/Src/Expressions/Expression.cs
@@ -64,8 +64,11 @@ namespace Debugger.Expressions
 		{
 			if (context.SelectedStackFrame != null) {
 				return Evaluate(context.SelectedStackFrame);
-			} else {
+			} else if (context.SelectedThread.MostRecentStackFrame != null ) {
 				return Evaluate(context.SelectedThread.MostRecentStackFrame);
+			} else {
+				// This can happen when needed 'dll' is missing.  This causes an exception dialog to be shown even before the applicaiton starts
+				throw new GetValueException("Can not evaluate because the process has no managed stack frames");
 			}
 		}