diff --git a/fixtracks/widgets/tracks.py b/fixtracks/widgets/tracks.py
index eb94232..3c24ff1 100644
--- a/fixtracks/widgets/tracks.py
+++ b/fixtracks/widgets/tracks.py
@@ -195,8 +195,8 @@ class FixTracks(QWidget):
         self._timeline.signals.windowMoved.connect(self.on_windowChanged)
 
         self._windowspinner = QSpinBox()
-        self._windowspinner.setRange(100, 10000)
-        self._windowspinner.setSingleStep(100)
+        self._windowspinner.setRange(10, 10000)
+        self._windowspinner.setSingleStep(50)
         self._windowspinner.setValue(500)
         self._windowspinner.valueChanged.connect(self.on_windowSizeChanged)
         self._keypointcombo = QComboBox()
@@ -445,6 +445,7 @@ class FixTracks(QWidget):
         """
         max_frames = self._data.max("frame")
         rel_width = value / max_frames
+        logging.debug("Tracks:OnWindowSizeChanged %f", rel_width)
         self._timeline.setWindowWidth(rel_width)
 
     def on_detectionsSelected(self, detections):