Another couple of cases for runonce.bat!

• First, there was the case of the messed up Render Manager.
  The Render Manager was slow to display and doesn’t show the properties in the right-hand panel.
  The customer originally had this problem in 2011, and then is started happening in 2012 too.
• Second, the case of the Softimage 2012 that hung at startup, even after several reinstalls.
  The installer does run runonce.bat, so it’s a bit surprising that a reinstall didn’t fix the problem.