Software Update - WD SmartWare Version 1.6.0 for Windows (5/9/12)

i loaded 1.6.0 and now have no backup to my Outlook .pst files and Windows 7 64 bit power management sleep mode does not run.  I can manually go into sleep mode but can not schedule sleep mode.  if i go under services and shut down WDBackup services sleep mode works correctly.  Can anyone give any advice.  i have spent my entire Saturday loading and removeing 1.6.0 and redoing the backup on the drive and still have the same issues.