diff --git a/gluon/dal.py b/gluon/dal.py
index 50ff6656..e1ecc2f6 100644
--- a/gluon/dal.py
+++ b/gluon/dal.py
@@ -567,7 +567,7 @@ class ConnectionPool(object):
         """ this actually does not make the folder. it has to be there """
         self.folder = getattr(THREAD_LOCAL,'folder','')
 
-        if (os.path.isabs(self.folder) and 
+        if (os.path.isabs(self.folder) and
             isinstance(self, UseDatabaseStoredFile) and
             self.folder.startswith(os.getcwd())):
             self.folder = os.path.relpath(self.folder, os.getcwd())
@@ -1676,7 +1676,7 @@ class BaseAdapter(ConnectionPool):
                 sql_o += ' ORDER BY %s' % self.RANDOM()
             else:
                 sql_o += ' ORDER BY %s' % self.expand(orderby)
-        if (limitby and not groupby and tablenames and orderby_on_limitby):
+        if (limitby and not groupby and tablenames and orderby_on_limitby and not orderby):
             sql_o += ' ORDER BY %s' % ', '.join(['%s.%s'%(t,x) for t in tablenames for x in (hasattr(self.db[t],'_primarykey') and self.db[t]._primarykey or [self.db[t]._id.name])])
         # oracle does not support limitby
         sql = self.select_limitby(sql_s, sql_f, sql_t, sql_w, sql_o, limitby)
@@ -8367,7 +8367,7 @@ class Table(object):
         self._references = []
         for field in self:
             fieldname = field.name
-            field_type = field.type            
+            field_type = field.type
             if isinstance(field_type,str) and field_type[:10] == 'reference ':
                 ref = field_type[10:].strip()
                 if not ref.strip():
@@ -8375,7 +8375,7 @@ class Table(object):
                 if '.' in ref:
                     rtablename, rfieldname = ref.split('.',1)
                 else:
-                    rtablename, rfieldname = ref, None                
+                    rtablename, rfieldname = ref, None
                 if not rtablename in db:
                     pr[rtablename] = pr.get(rtablename,[]) + [field]
                     continue
@@ -8398,7 +8398,7 @@ class Table(object):
                 field.referent = None
         for referee in pr.get(self._tablename,[]):
             self._referenced_by.append(referee)
-            
+
     def _filter_fields(self, record, id=False):
         return dict([(k, v) for (k, v) in record.iteritems() if k
                      in self.fields and (self[k].type!='id' or id)])