diff --git a/PyLoT.py b/PyLoT.py
index e0689365..dc465395 100644
--- a/PyLoT.py
+++ b/PyLoT.py
@@ -716,14 +716,14 @@ class MainWindow(QMainWindow):
         self.tabs.addTab(wf_tab, 'Waveform Plot')
         self.tabs.addTab(array_tab, 'Array Map')
         self.tabs.addTab(events_tab, 'Eventlist')
-        self.tabs.addTab(spectro_tab, 'Spectro')
+        #self.tabs.addTab(spectro_tab, 'Spectro')
 
         self.wf_layout.addWidget(self.no_data_label)
         self.wf_layout.addWidget(self.wf_scroll_area)
         self.wf_scroll_area.setWidgetResizable(True)
         self.init_array_tab()
         self.init_event_table()
-        self.init_spectro_tab()
+        #self.init_spectro_tab()
         self.tabs.setCurrentIndex(0)
 
         self.eventLabel = QLabel()
diff --git a/pylot/core/util/dataprocessing.py b/pylot/core/util/dataprocessing.py
index 19bed851..af75bdcf 100644
--- a/pylot/core/util/dataprocessing.py
+++ b/pylot/core/util/dataprocessing.py
@@ -59,6 +59,8 @@ class Metadata(object):
         :type path_to_inventory: str
         :return: None
         """
+        path_to_inventory = path_to_inventory.replace('\\', '/')
+        path_to_inventory = os.path.abspath(path_to_inventory)
         assert (os.path.isdir(path_to_inventory)), '{} is no directory'.format(path_to_inventory)
         if path_to_inventory not in self.inventories:
             self.inventories.append(path_to_inventory)