This Hot Fix is for Ensim Pro 4.0.1 for Linux (RHEL and Fedora Core1).

 To apply this fix,

Copy the attached file  'mercury.py'  to  /usr/lib/opcenter/skins/mercury/mercury.py

Copy the attached file   'xmlhelper.pyc'  to  /usr/lib/ensim-python/site-packages/ensimappl/xmlhelper.pyc

Then restart webppliance