diff --git a/sabnzbd/growler.py b/sabnzbd/growler.py
index 51ddfb9..e2ed0f2 100644
--- a/sabnzbd/growler.py
+++ b/sabnzbd/growler.py
@@ -175,6 +175,7 @@ def send_growl(title , msg, gtype):
         if _GROWL:
             assert isinstance(_GROWL, GrowlNotifier)
             _GROWL_REG = True
+            if not isinstance(msg, str): msg = str(msg)
             logging.debug('Send to Growl: %s %s %s', gtype, latin1(title), latin1(msg))
             try:
                 ret = _GROWL.notify(
diff --git a/sabnzbd/misc.py b/sabnzbd/misc.py
index 67be269..0500dc8 100644
--- a/sabnzbd/misc.py
+++ b/sabnzbd/misc.py
@@ -875,7 +875,10 @@ def bad_fetch(nzo, url, msg='', retry=False, content=False):
         retry : make retry link in histort
         content : report in history that cause is a bad NZB file
     """
-    msg = unicoder(msg)
+    if msg:
+        msg = unicoder(msg)
+    else:
+        msg = ''
 
     pp = nzo.pp
     if pp is None:
diff --git a/sabnzbd/newzbin.py b/sabnzbd/newzbin.py
index 99e28c2..9a8f2f5 100644
--- a/sabnzbd/newzbin.py
+++ b/sabnzbd/newzbin.py
@@ -134,7 +134,7 @@ class MSGIDGrabber(Thread):
                 else:
                     # Fatal error, give up on this one
                     bad_fetch(nzo, msgid, msg=nzo_info, retry=True)
-                    msgid = None
+                msgid = None
 
             if msgid:
                 growler.send_notification(T('NZB added to queue'), filename, 'download')
@@ -190,7 +190,7 @@ def _grabnzb(msgid):
         pass
     if not (rcode or rtext):
         logging.error(T('Newzbin server changed its protocol'))
-        return None, None, None, None
+        return retry
 
     # Official return codes:
     # 200 = OK, NZB content follows