=== modified file 'GTG/core/datastore.py'
--- GTG/core/datastore.py	2009-12-26 20:51:14 +0000
+++ GTG/core/datastore.py	2010-02-14 10:02:48 +0000
@@ -102,7 +102,11 @@
         #If tid, we force that tid and create a real new task
         if tid and tid not in self.tasks:
             task = Task(tid, self.requester, newtask=newtask)
-            uid, pid = tid.split('@') #pylint: disable-msg=W0612
+            bundle = tid.split('@') 
+            if not bundle:
+                sys.stderr.write('Tid does not exist in backend')
+                return None
+            uid, pid = bundle 
             self.tasks[tid] = task
             toreturn = task
         #Else we create a new task in the given pid

=== modified file 'GTG/taskbrowser/browser.py'
--- GTG/taskbrowser/browser.py	2010-01-26 21:36:16 +0000
+++ GTG/taskbrowser/browser.py	2010-02-14 10:02:48 +0000
@@ -687,6 +687,9 @@
                         self.start_minimized == True) and \
                         "opened_tasks" in self.config["browser"]:
             odic = self.config["browser"]["opened_tasks"]
+            #odic can contain also "None" or "None,", so we skip them
+            if odic == "None" or (len(odic)> 0 and odic[0] == "None"):
+                return
             for t in odic:
                 ted = self.open_task(t)
                 #restoring position doesn't work, I don't know why