diff --git a/.gitignore b/.gitignore
index b7279d4..e2fb980 100644
--- a/.gitignore
+++ b/.gitignore
@@ -190,3 +190,4 @@ ModelManifest.xml
 /Contralto.VC.VC.opendb
 /Contralto.VC.db
 /.vs/Contralto/v15/Server/sqlite3
+/.vs/Contralto/DesignTimeBuild/.dtbcache
diff --git a/Contralto/Configuration.cs b/Contralto/Configuration.cs
index 7a73b32..276caf2 100644
--- a/Contralto/Configuration.cs
+++ b/Contralto/Configuration.cs
@@ -259,17 +259,38 @@ namespace Contralto
 
         public static string GetAltoIRomPath(string romFileName)
         {
-            return Path.Combine("ROM", "AltoI", romFileName);
+            if (string.IsNullOrEmpty(StartupOptions.RomPath))
+            {
+                return Path.Combine("ROM", "AltoI", romFileName);
+            }
+            else
+            {
+                return Path.Combine(StartupOptions.RomPath, "AltoI", romFileName);
+            }
         }
 
         public static string GetAltoIIRomPath(string romFileName)
         {
-            return Path.Combine("ROM", "AltoII", romFileName);
+            if (string.IsNullOrEmpty(StartupOptions.RomPath))
+            {
+                return Path.Combine("ROM", "AltoII", romFileName);
+            }
+            else
+            {
+                return Path.Combine(StartupOptions.RomPath, "AltoII", romFileName);
+            }
         }
 
         public static string GetRomPath(string romFileName)
         {
-            return Path.Combine("ROM", romFileName);
+            if (string.IsNullOrEmpty(StartupOptions.RomPath))
+            {
+                return Path.Combine("ROM", romFileName);
+            }
+            else
+            {
+                return Path.Combine(StartupOptions.RomPath, romFileName);
+            }
         }       
 
         /// <summary>
diff --git a/Contralto/IO/HostEthernetEncapsulation.cs b/Contralto/IO/HostEthernetEncapsulation.cs
index 493e7b0..593be15 100644
--- a/Contralto/IO/HostEthernetEncapsulation.cs
+++ b/Contralto/IO/HostEthernetEncapsulation.cs
@@ -68,7 +68,8 @@ namespace Contralto.IO
                     //
                     // We use the friendly name to make it easier to specify in config files.
                     //
-                    if (((WinPcapDevice)device).Interface.FriendlyName.ToLowerInvariant() == name.ToLowerInvariant())
+                    if (!string.IsNullOrWhiteSpace(((WinPcapDevice)device).Interface.FriendlyName) && 
+                        ((WinPcapDevice)device).Interface.FriendlyName.ToLowerInvariant() == name.ToLowerInvariant())
                     {
                         AttachInterface(device);
                         break;
diff --git a/Contralto/Program.cs b/Contralto/Program.cs
index f77cbb3..a471cab 100644
--- a/Contralto/Program.cs
+++ b/Contralto/Program.cs
@@ -27,6 +27,8 @@ namespace Contralto
         public static string ConfigurationFile;
 
         public static string ScriptFile;
+
+        public static string RomPath;
     }
 
     class Program
@@ -67,6 +69,18 @@ namespace Contralto
                             }
                             break;
 
+                        case "-rompath":
+                            if (i < args.Length)
+                            {
+                                StartupOptions.RomPath = args[i];
+                            }
+                            else
+                            {
+                                PrintUsage();
+                                return;
+                            }
+                            break;
+
                         default:
                             PrintUsage();
                             return;
diff --git a/Contralto/SdlUI/DebuggerPrompt.cs b/Contralto/SdlUI/DebuggerPrompt.cs
index 90e05d1..73224a1 100644
--- a/Contralto/SdlUI/DebuggerPrompt.cs
+++ b/Contralto/SdlUI/DebuggerPrompt.cs
@@ -199,8 +199,11 @@ namespace Contralto.SdlUI
                 clear = sb.ToString();
             }
 
-            int column = ((_textPosition + _originColumn) % Console.BufferWidth);
-            int row = ((_textPosition + _originColumn) / Console.BufferWidth) + _originRow;
+            // Default to 80 if BufferWidth is zero (this can happen if stdout is being redirected)
+            int bufferWidth = Console.BufferWidth > 0 ? Console.BufferWidth : 80;
+
+            int column = ((_textPosition + _originColumn) % bufferWidth);
+            int row = ((_textPosition + _originColumn) / bufferWidth) + _originRow;
 
             // Move cursor to origin to draw string
             Console.CursorLeft = _originColumn;
diff --git a/Contralto/UI/SystemOptions.cs b/Contralto/UI/SystemOptions.cs
index a1fe523..5dc31bd 100644
--- a/Contralto/UI/SystemOptions.cs
+++ b/Contralto/UI/SystemOptions.cs
@@ -163,7 +163,15 @@ namespace Contralto.UI
                     {
                         foreach (WinPcapDevice device in CaptureDeviceList.Instance)
                         {
-                            EthernetInterfaceListBox.Items.Add(new EthernetInterface(device.Interface.FriendlyName, device.Interface.Description));                        
+                            //
+                            // NCap seems to return some interfaces with a null FriendlyName; empirically these
+                            // are not real network adapters that would typically be used with ContrAlto so we
+                            // will not display them here.
+                            //
+                            if (!string.IsNullOrWhiteSpace(device.Interface.FriendlyName))
+                            {
+                                EthernetInterfaceListBox.Items.Add(new EthernetInterface(device.Interface.FriendlyName, device.Interface.Description));
+                            }
                         }
                     }
                     break;