diff --git a/tests/test_download_progress.py b/tests/test_download_progress.py
index ecc0494..f123e3b 100644
--- a/tests/test_download_progress.py
+++ b/tests/test_download_progress.py
@@ -1,5 +1,4 @@
 import queue
-from unittest.mock import MagicMock, patch
 
 import tqdm as tqdm_module
 
diff --git a/whisper_local/tray/_download_progress.py b/whisper_local/tray/_download_progress.py
index 0b5c8c0..bd5918a 100644
--- a/whisper_local/tray/_download_progress.py
+++ b/whisper_local/tray/_download_progress.py
@@ -99,7 +99,10 @@ def load_model_with_progress(
     pct_var = tk.StringVar(value="0 %")
     ttk.Label(frame, textvariable=pct_var).pack(anchor=tk.E, pady=(2, 0))
 
+    _dialog_shown = False
+
     def poll() -> None:
+        nonlocal _dialog_shown
         try:
             while True:
                 msg = q.get_nowait()
@@ -107,8 +110,9 @@ def load_model_with_progress(
                     root.quit()
                     return
                 # Erste echte Meldung → Dialog anzeigen
-                if not root.winfo_viewable():
+                if not _dialog_shown:
                     root.deiconify()
+                    _dialog_shown = True
                 # UI aktualisieren
                 file_var.set(msg["file"])
                 if msg["total"] > 0: