Fix crash when starting ILSpy without /navigateTo.

ILSpy/ILSpy.csproj

@@ -17,7 +17,7 @@
     <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
     <ApplicationIcon>Images\ILSpy.ico</ApplicationIcon>
     <RunCodeAnalysis>False</RunCodeAnalysis>
-    <StartArguments>/separate "C:\temp\decompiled\Mono.Cecil.dll"</StartArguments>
+    <StartArguments>/separate</StartArguments>
     <SignAssembly>True</SignAssembly>
     <AssemblyOriginatorKeyFile>..\NRefactory\ICSharpCode.NRefactory.snk</AssemblyOriginatorKeyFile>
     <DelaySign>False</DelaySign>

ILSpy/MainWindow.xaml.cs

@@ -294,16 +294,6 @@ namespace ICSharpCode.ILSpy
 				// NavigateTo == null and an assembly was given on the command-line:
 				// Select the newly loaded assembly
 				JumpToReference(commandLineLoadedAssemblies[0].AssemblyDefinition);
-			} else {
-				SharpTreeNode node = FindNodeByPath(sessionSettings.ActiveTreeViewPath, true);
-				if (node != null) {
-					SelectNode(node);
-					
-					// only if not showing the about page, perform the update check:
-					ShowMessageIfUpdatesAvailableAsync(spySettings);
-				} else {
-					AboutPage.Display(decompilerTextView);
-				}
 			}
 			commandLineLoadedAssemblies.Clear(); // clear references once we don't need them anymore
 		}
@@ -328,6 +318,17 @@ namespace ICSharpCode.ILSpy
 			ShowAssemblyList(this.assemblyList);
 			
 			HandleCommandLineArgumentsAfterShowList(App.CommandLineArguments);
+			if (App.CommandLineArguments.NavigateTo == null && App.CommandLineArguments.AssembliesToLoad.Count != 1) {
+				SharpTreeNode node = FindNodeByPath(sessionSettings.ActiveTreeViewPath, true);
+				if (node != null) {
+					SelectNode(node);
+					
+					// only if not showing the about page, perform the update check:
+					ShowMessageIfUpdatesAvailableAsync(spySettings);
+				} else {
+					AboutPage.Display(decompilerTextView);
+				}
+			}
 		}
 		
 		#region Update Check