diff --git a/src/http.rs b/src/http.rs
index 11f11fb..695b802 100644
--- a/src/http.rs
+++ b/src/http.rs
@@ -27,7 +27,8 @@ impl Client {
                     return true;
                 }
 
-                if let Some(err) = err.source() {
+                let mut source = err.source();
+                while let Some(err) = source {
                     if let Some(err) = err.downcast_ref::<std::io::Error>() {
                         match err.raw_os_error() {
                             // Retry on DNS lookup failure.
@@ -35,8 +36,10 @@ impl Client {
                             Some(windows_sys::Win32::Networking::WinSock::WSAHOST_NOT_FOUND) => {
                                 return true
                             }
-                            _ => {}
+                            _ => break,
                         }
+                    } else {
+                        source = err.source();
                     }
                 }
 
diff --git a/src/main.rs b/src/main.rs
index 4f406b3..b2ac466 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -92,7 +92,8 @@ impl eframe::App for Slideshow {
             _ => (),
         }
 
-        let response = egui::CentralPanel::default().show(ctx, |ui|
+        let frame = egui::Frame::default().fill(Color32::BLACK);
+        let response = egui::CentralPanel::default().frame(frame).show(ctx, |ui|
             ui.centered_and_justified(|ui|
                  match &self.current_state {
                     Ok(AppState::LoadingImage) => {