diff --git a/rowers/datautils.py b/rowers/datautils.py
index ecf961dc..b19a7597 100644
--- a/rowers/datautils.py
+++ b/rowers/datautils.py
@@ -304,14 +304,15 @@ def getmaxwattinterval(tt,ww,i):
     if len(w_roll):
         # now goes with # data points - should be fixed seconds
         indexmax = w_roll.idxmax(axis=1)
+        indexmaxpos = indexmax.get_loc(indexmax)
         try:
-            t_0 = tt.ix[indexmax]
-            t_1 = tt.ix[indexmax-i]
-            deltas = tt.ix[indexmax-i:indexmax].diff().dropna()
+            t_0 = tt.iloc[indexmaxpos]
+            t_1 = tt.iloc[indexmaxpos-i]
+            deltas = tt.iloc[indexmaxpos-i:indexmaxpos].diff().dropna()
             testres = 1.0e-3*deltas.max() < 30.
             if testres:
                 deltat = 1.0e-3*(t_0-t_1)
-                wmax = w_roll.ix[indexmax]
+                wmax = w_roll.iloc[indexmaxpos]
                 #if wmax > 800 or wmax*5.0e-4*deltat > 800.0:
                 #    wmax = 0
             else:
diff --git a/rowers/tests/statements.py b/rowers/tests/statements.py
index 310b127e..51f1f25a 100644
--- a/rowers/tests/statements.py
+++ b/rowers/tests/statements.py
@@ -30,7 +30,7 @@ from rowers.tasks import handle_makeplot
 from rowers.utils import serialize_list,deserialize_list
 from rowers.utils import NoTokenError
 from rowers.plannedsessions import get_dates_timeperiod
-from shutil import copyfile
+from shutil import copyfile, copy
 from nose.tools import assert_true
 from mock import Mock, patch
 from minimocktest import MockTestCase
@@ -107,7 +107,8 @@ def get_random_file(filename='rowers/tests/testdata/testdata.csv',name=''):
     else:
         newfilename = 'rowers/tests/testdata/temp/'+fromstring+uuid4().hex[:16]+'.'+extension
 
-    copyfile(filename,newfilename)
+    # copyfile(filename,newfilename)
+    copy(filename,newfilename)
 
     thedict = {
         'row':row,
diff --git a/rowers/tests/testdata/testdata.csv.gz b/rowers/tests/testdata/testdata.csv.gz
index ac467768..1130e114 100644
Binary files a/rowers/tests/testdata/testdata.csv.gz and b/rowers/tests/testdata/testdata.csv.gz differ