diff --git a/commerce/interfaces.py b/commerce/interfaces.py
index 824d989..5a704b0 100644
--- a/commerce/interfaces.py
+++ b/commerce/interfaces.py
@@ -1,6 +1,6 @@
 #-*- coding: UTF-8 -*-
 #
-#  Copyright (c) 2012 Helmut Merz helmutm@cy55.de
+#  Copyright (c) 2015 Helmut Merz helmutm@cy55.de
 #
 #  This program is free software; you can redistribute it and/or modify
 #  it under the terms of the GNU General Public License as published by
@@ -408,12 +408,13 @@ class IOrderItem(ITrack):
     shop = Attribute(u'The shop from which the product is ordered.')
     order = Attribute(u'The order this order item belongs to.')
     unitPrice = Attribute(u'The basic unit price for one of the product '
-                    u'items ordered.')
+                    u'ites ordered.')
     fullPrice = Attribute(u'The full price for the quantity ordered.')
     quantityShipped = Attribute(u'The total quantity that has been shipped '
                     u'already.')
     shippingInfo = Attribute(u'A list of mappings, with fields like: '
                     u'shippingId, shippingDate, quantity, packageId')
+    options = Attribute(u'Product options associated with this order item.')
 
     def remove():
         """ Remove the order item from the order or cart.
diff --git a/commerce/order.py b/commerce/order.py
index 05b3289..14e180e 100644
--- a/commerce/order.py
+++ b/commerce/order.py
@@ -1,5 +1,5 @@
 #
-#  Copyright (c) 2011 Helmut Merz helmutm@cy55.de
+#  Copyright (c) 2015 Helmut Merz helmutm@cy55.de
 #
 #  This program is free software; you can redistribute it and/or modify
 #  it under the terms of the GNU General Public License as published by
@@ -18,8 +18,6 @@
 
 """
 Order and order item classes.
-
-$Id$
 """
 
 from zope.cachedescriptors.property import Lazy
@@ -119,6 +117,10 @@ class OrderItems(object):
     def add(self, product, party, shop, order='???', run=0, **kw):
         kw['shop'] = self.getUid(shop)
         existing = self.getCart(party, order, shop, run, product=product)
+        options = kw.get('options')
+        if options is not None:
+            existing = [item for item in existing 
+                             if (item.data.get('options') or []) == options]
         if existing:
             track = existing[-1]
             track.modify(track.quantity + kw.get('quantity', 1))
diff --git a/knowledge/survey/questionnaire.py b/knowledge/survey/questionnaire.py
index 45efa0f..6fb6146 100644
--- a/knowledge/survey/questionnaire.py
+++ b/knowledge/survey/questionnaire.py
@@ -36,6 +36,9 @@ class Questionnaire(object):
         self.responses = []
         self.defaultAnswerRange = 5
 
+    def getQuestionGroups(self, party):
+        return self.questionGroups
+
 
 class QuestionGroup(object):
 
@@ -95,7 +98,7 @@ class Response(object):
 
     def getGroupedResult(self):
         result = []
-        for qugroup in self.questionnaire.questionGroups:
+        for qugroup in self.questionnaire.getQuestionGroups(self.party):
             score = scoreMax = 0.0
             for qu in qugroup.questions:
                 if qu.questionType not in (None, 'value_selection'):
@@ -131,6 +134,8 @@ class Response(object):
             values = [data.values.get(group) for data in teamData]
             values = [v for v in values if v is not None]
             #avg = sum(values) / len(teamData)
+            if not values:
+                continue
             avg = sum(values) / len(values)
             result.append(dict(group=group, average=avg))
         ranks = getRanks([r['average'] for r in result])
diff --git a/media/piltransform.py b/media/piltransform.py
index af4ce5d..1281b37 100644
--- a/media/piltransform.py
+++ b/media/piltransform.py
@@ -20,8 +20,6 @@
 Views for displaying media assets.
 
 Authors: Johann Schimpf, Erich Seifert.
-
-$Id$
 """
 
 from logging import getLogger
@@ -35,6 +33,8 @@ from zope.interface import implements
 from cybertools.media.interfaces import IMediaAsset, IFileTransform
 from cybertools.storage.filesystem import FileSystemStorage
 
+logger = getLogger('cybertools.media.piltransform.PILTransform')
+
 
 def mimetypeToPIL(mimetype):
     return mimetype.split("/",1)[-1]
@@ -51,8 +51,7 @@ class PILTransform(object):
         try:
             self.im = Image.open(path)
         except IOError, e:
-            from logging import getLogger
-            getLogger('cybertools.media.piltransform.PILTransform').warn(e)
+            logger.warn(e)
             self.im = None
 
     def rotate(self, angle, resize):
@@ -101,10 +100,17 @@ class PILTransform(object):
             ratio = float(ow) / float(oh)
             height = int(round(float(width) / ratio))
         dims = (width, height)
-        self.im.thumbnail(dims, Image.ANTIALIAS)
+        try:
+            self.im.thumbnail(dims, Image.ANTIALIAS)
+        except IOError, e:
+            logger.warn(e)
+
 
     def save(self, path, mimetype):
         if self.im is None:
             return
         format = mimetypeToPIL(mimetype)
-        self.im.save(path)
+        try:
+            self.im.save(path)
+        except IOError, e:
+            logger.warn(e)
diff --git a/organize/work.py b/organize/work.py
index 63f8979..921ee7f 100644
--- a/organize/work.py
+++ b/organize/work.py
@@ -52,7 +52,7 @@ def workItemStates():
                'move', 'cancel', 'modify'),
               color='yellow'),
         State('running', 'running',
-              ('work', 'finish', 'move', 'cancel', 'modify'),
+              ('work', 'finish', 'move', 'cancel', 'modify'),   # 'delegate', # ?
               color='orange'),
         State('done', 'done',
               ('plan', 'accept', 'start', 'work', 'finish', 'delegate',
@@ -279,6 +279,9 @@ class WorkItem(Stateful, Track):
             if self.state in ('planned', 'accepted', 'delegated', 'moved', 'done'):
                 self.state = self.state + '_x'
                 self.reindex('state')
+            #elif self.state == 'running':
+            #    self.doAction('work', userName, 
+            #                  end=(kw.get('end') or getTimeStamp()))
             xkw = dict(kw)
             xkw.pop('party', None)
             delegated = self.createNew('delegate', userName, **xkw)