diff --git a/renderdocui/Code/AppMain.cs b/renderdocui/Code/AppMain.cs
index b32576c89..87b68300f 100644
--- a/renderdocui/Code/AppMain.cs
+++ b/renderdocui/Code/AppMain.cs
@@ -71,7 +71,7 @@ namespace renderdocui.Code
             // save it)
             foreach(var a in args)
             {
-                if(a.ToUpperInvariant() == "--tempfile")
+                if(a.ToUpperInvariant() == "--TEMPFILE")
                     temp = true;
             }
 
@@ -80,7 +80,7 @@ namespace renderdocui.Code
 
             for (int i = 0; i < args.Length; i++)
             {
-                if (args[i].ToUpperInvariant() == "--remoteaccess" && i + 1 < args.Length)
+                if (args[i].ToUpperInvariant() == "--REMOTEACCESS" && i + 1 < args.Length)
                 {
                     var regexp = @"^([a-zA-Z0-9_-]+:)?([0-9]+)$";
 
diff --git a/renderdocui/Windows/APIInspector.cs b/renderdocui/Windows/APIInspector.cs
index 4d4a10ad5..d204f075a 100644
--- a/renderdocui/Windows/APIInspector.cs
+++ b/renderdocui/Windows/APIInspector.cs
@@ -100,7 +100,7 @@ namespace renderdocui.Windows
                     for (int i = 1; i < lines.Length; i++)
                     {
                         string l = rgx.Replace(lines[i], replacement);
-                        if (l.Length == 0)
+                        if (l.Length > 0)
                             node.Nodes.Add(new TreelistView.Node(new object[] { "", l }));
                     }
 
diff --git a/renderdocui/Windows/Dialogs/TextureSaveDialog.cs b/renderdocui/Windows/Dialogs/TextureSaveDialog.cs
index c51ed90eb..4a102125d 100644
--- a/renderdocui/Windows/Dialogs/TextureSaveDialog.cs
+++ b/renderdocui/Windows/Dialogs/TextureSaveDialog.cs
@@ -26,7 +26,7 @@ namespace renderdocui.Windows.Dialogs
                 fileFormat.Items.Add(ft.ToString());
 
                 if (filter.Length > 0) filter += "|";
-                filter += String.Format("{0} Files (*.{1})|*.{1}", ft.ToString(), ft.ToString().ToUpperInvariant());
+                filter += String.Format("{0} Files (*.{1})|*.{1}", ft.ToString(), ft.ToString().ToLower(Application.CurrentCulture));
             }
             
             saveTexDialog.Filter = filter;