diff --git a/gui/chromeTabs.py b/gui/chromeTabs.py
index d9b1799c9..b1914f75e 100644
--- a/gui/chromeTabs.py
+++ b/gui/chromeTabs.py
@@ -1203,17 +1203,11 @@ class PFNotebookPagePreview(wx.Frame):
         self.Refresh()
 
     def OnTimer(self, event):
-        if event.GetId() == self.timerSleepId:
-            self.direction = -1
-            self.timer.Start(10)
-            return
         self.transp += 20*self.direction
+
         if self.transp > 240:
             self.transp = 240
             self.timer.Stop()
-            if not self.timerSleep:
-                self.timerSleep = wx.Timer(self, self.timerSleepId)
-            self.timerSleep.Start(5000, True)
 
         if self.transp < 0:
             self.transp = 0