ubuntu 13.04: test_grouped_box_return_type AssertionError: Lists differ: ['A', 'C', 'D', 'E', 'F', 'G',... != ['A', 'B', 'C', 'D', 'E', 'F',
```
======================================================================
FAIL: test_grouped_box_return_type (pandas.tests.test_graphics.TestDataFrameGroupByPlots)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/tmp/buildd/pandas-0.14.0~rc1+git79-g1fa5dd4/debian/tmp/usr/lib/python2.7/dist-packages/pandas/tests/test_graphics.py", line 2286, in test_grouped_box_return_type
    self._check_box_dict(returned, t, klass, categories2)
  File "/tmp/buildd/pandas-0.14.0~rc1+git79-g1fa5dd4/debian/tmp/usr/lib/python2.7/dist-packages/pandas/tests/test_graphics.py", line 2252, in _check_box_dict
    self.assertEqual(sorted(returned.keys()), sorted(expected_keys))
AssertionError: Lists differ: ['A', 'C', 'D', 'E', 'F', 'G',... != ['A', 'B', 'C', 'D', 'E', 'F',...

First differing element 1:
C
B

Second list contains 1 additional elements.
First extra element 9:
J

- ['A', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J']
+ ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J']
?       +++++

```
## INSTALLED VERSIONS

commit: None
python: 2.7.4.final.0
python-bits: 32
OS: Linux
OS-release: 3.2.0-4-amd64
machine: x86_64
processor: x86_64
byteorder: little
LC_ALL: C
LANG: C

pandas: 0.14.0.dev
nose: 1.1.2
Cython: 0.17.4
numpy: 1.7.1
scipy: 0.11.0
statsmodels: 0.5.0
IPython: None
sphinx: 1.1.3
patsy: 0.2.1
scikits.timeseries: None
dateutil: 1.5
pytz: 2012c
bottleneck: None
tables: 2.4.0
numexpr: 2.0.1
matplotlib: 1.2.1
openpyxl: 1.7.0
xlrd: 0.6.1
xlwt: 0.7.4
xlsxwriter: None
lxml: None
bs4: 4.1.2
html5lib: 0.95-dev
bq: None
apiclient: None
rpy2: None
sqlalchemy: None
pymysql: None
psycopg2: None

```
```
