diff --git a/lib/Slic3r/GUI/Plater.pm b/lib/Slic3r/GUI/Plater.pm
index cd5617778..fe754a044 100644
--- a/lib/Slic3r/GUI/Plater.pm
+++ b/lib/Slic3r/GUI/Plater.pm
@@ -195,7 +195,7 @@ sub new {
             reset           cross.png
             arrange         bricks.png
             export_gcode    cog_go.png
-            send_gcode      cog_go.png
+            send_gcode      arrow_up.png
             export_stl      brick_go.png
             
             increase        add.png
@@ -1124,7 +1124,9 @@ sub send_gcode {
     if ($res->is_success) {
         $self->statusbar->SetStatusText("G-code file successfully uploaded to the Octoprint server");
     } else {
-        $self->statusbar->SetStatusText("Error while uploading to the Octoprint server: " . $res->status_line);
+        my $message = "Error while uploading to the Octoprint server: " . $res->status_line;
+        Slic3r::GUI::show_error($self, $message);
+        $self->statusbar->SetStatusText($message);
     }
 }
 
diff --git a/lib/Slic3r/GUI/Tab.pm b/lib/Slic3r/GUI/Tab.pm
index b5250f047..af7aae4fe 100644
--- a/lib/Slic3r/GUI/Tab.pm
+++ b/lib/Slic3r/GUI/Tab.pm
@@ -1007,7 +1007,7 @@ sub build {
                 my $btn = Wx::Button->new($parent, -1, "Browse…", wxDefaultPosition, wxDefaultSize, wxBU_LEFT);
                 $btn->SetFont($Slic3r::GUI::small_font);
                 if ($Slic3r::GUI::have_button_icons) {
-                    $btn->SetBitmap(Wx::Bitmap->new("$Slic3r::var/cog.png", wxBITMAP_TYPE_PNG));
+                    $btn->SetBitmap(Wx::Bitmap->new("$Slic3r::var/zoom.png", wxBITMAP_TYPE_PNG));
                 }
                 
                 if (!eval "use Net::Bonjour; 1") {
@@ -1024,6 +1024,7 @@ sub build {
                         $self->{config}->set('octoprint_host', $value);
                         $self->update_dirty;
                         $self->_on_value_change('octoprint_host', $value);
+                        $self->reload_config;
                     }
                 });
                 
diff --git a/var/zoom.png b/var/zoom.png
new file mode 100755
index 000000000..908612e39
Binary files /dev/null and b/var/zoom.png differ