diff --git a/mvc/main_window.py b/mvc/main_window.py
index 41dbef9..f6a2ee5 100644
--- a/mvc/main_window.py
+++ b/mvc/main_window.py
@@ -1,4 +1,5 @@
 # This Python file uses the following encoding: utf-8
+
 def setup_path():
     """Sets up the python include paths to include src"""
     import os.path; import sys
@@ -12,6 +13,55 @@ def setup_path():
 if __name__ == "__main__":
     setup_path()
     
+    import sys
+    import os
+    
+    try:
+        from models.m_config import ConfigModel
+    except:
+        print "Some fundamental files are missing. try runnig pyGTKtalog in his root directory"
+        sys.exit(1)
+    
+    conf = ConfigModel()
+    
+    try:
+        import pygtk
+        #tell pyGTK, if possible, that we want GTKv2
+        pygtk.require("2.0")
+    except:
+        #Some distributions come with GTK2, but not pyGTK
+        pass
+    try:
+        import gtk
+        import gtk.glade
+    except:
+        print "You need to install pyGTK or GTKv2 ",
+        print "or set your PYTHONPATH correctly."
+        print "try: export PYTHONPATH=",
+        print "/usr/local/lib/python2.2/site-packages/"
+        sys.exit(1)
+    
+    try:
+        from pysqlite2 import dbapi2 as sqlite
+        import mx.DateTime
+    except:
+        print "pyGTKtalog uses SQLite DB.\nYou'll need to get it and the python bindings as well.\nhttp://www.sqlite.org\nhttp://initd.org/tracker/pysqlite"
+        sys.exit(1)
+    
+    if conf.confd['exportxls']:
+        try:
+            import pyExcelerator
+        except:
+            print "You'll need pyExcelerator, if you want to export DB to XLS format.\nhttp://sourceforge.net/projects/pyexcelerator"
+            sys.exit(1)
+    
+    if conf.confd['pil']:
+        try:
+            import Image, ImageEnhance
+        except:
+            print "You'll need Python Imaging Library (PIL), if you want to make thumbnails"
+            sys.exit(1)
+    
     from models.m_main import MainModel
     from controllers.c_main import MainController
     from views.v_main import MainView
@@ -20,5 +70,16 @@ if __name__ == "__main__":
     v = MainView(c)
     
     import gtk
-    gtk.main()
+    try:
+        gtk.main()
+    except KeyboardInterrupt:
+        import os
+        #c.storeSettings()
+        #c.cur.close()
+        #c.con.close()
+        try:
+            os.unlink(c.db_tmp_filename)
+        except:
+            pass
+        gtk.main_quit
     pass