diff --git a/courseware/calc.py b/courseware/calc.py
index 69ccc0162a..f617c3b21b 100644
--- a/courseware/calc.py
+++ b/courseware/calc.py
@@ -22,7 +22,7 @@ def evaluator(variables, functions, string):
     suffixes={'%':0.01,'k':1e3,'M':1e6,'G':1e9,
               'T':1e12,#'P':1e15,'E':1e18,'Z':1e21,'Y':1e24,
               'c':1e-2,'m':1e-3,'u':1e-6,
-              'n':1e-9,'p':1e-12,'f'}#:1e-15,'a':1e-18,'z':1e-21,'y':1e-24}
+              'n':1e-9,'p':1e-12}#,'f':1e-15,'a':1e-18,'z':1e-21,'y':1e-24}
     
     def super_float(text):
         ''' Like float, but with si extensions. 1k goes to 1000'''
diff --git a/courseware/capa_module.py b/courseware/capa_module.py
index 3f184f7583..69eecf4f97 100644
--- a/courseware/capa_module.py
+++ b/courseware/capa_module.py
@@ -238,12 +238,16 @@ class LoncapaModule(XModule):
             answers['_'.join(key.split('_')[1:])]=get[key]
 
         try:
-            ocm = lcp.correct_map
-            oa = lcp.answers
+            print "A"
+            ocm = self.lcp.correct_map
+            print "."
+            oa = self.lcp.answers
+            print "."
             correct_map = self.lcp.grade_answers(answers)
+            print "."
         except: 
-            lcp.correct_map = ocm # HACK: Reset state
-            lcp.answers = oa
+            self.lcp.correct_map = ocm # HACK: Reset state
+            self.lcp.answers = oa
             return json.dumps({'success':'syntax'})
 
         self.attempts = self.attempts + 1