diff --git a/vviewer/Image4D.py b/vviewer/Image4D.py
index 446ea0e691de42ef5ce6e04f4f91ba7ce780b557..2b6137cc1faebc0f4e3fbab90225c19306d09338 100644
--- a/vviewer/Image4D.py
+++ b/vviewer/Image4D.py
@@ -76,7 +76,6 @@ class Image4D(Image):
 
         self.image_res = img.get_data()[:,:,:,self.frame]
         self.time_dim = img.get_data().shape[3] # set beginning from zero.
-        print(self.time_dim)
 
         self.extremum[0] = img.get_data().min()
         self.extremum[1] = img.get_data().max()
diff --git a/vviewer/vviewer.py b/vviewer/vviewer.py
index 3ce8e0a1305d72b9d029e244b2446a3ea3c0a64c..f2f069d254e020f63e364a44a2c35696dc464f9a 100755
--- a/vviewer/vviewer.py
+++ b/vviewer/vviewer.py
@@ -25,10 +25,17 @@ by these sections:
 ## Section: Closing the Viewer ##
 """
 
+from sip import setapi
+setapi("QDate", 2)
+setapi("QDateTime", 2)
+setapi("QTextStream", 2)
+setapi("QTime", 2)
+setapi("QVariant", 2)
+setapi("QString", 2)
+setapi("QUrl", 2)
+
+
 from pyqtgraph.Qt import QtCore, QtGui
-#import sip
-#sip.setapi('QString', 2)
-#from qt import QtCore, QtGui
 import numpy as np
 import math
 import os