Runtime Error in method IViewHost.OnLoad

Question

Hi, I noticed the following error in Event Viewer (under Application section):

Runtime Error in method IViewHost.OnLoad of type System.ArgumentException.The exception was System.ArgumentException: SAPHostName must be specified
   at Microsoft.SharePoint.Portal.WebControls.IViewHost.get_Producer()
   at Microsoft.SharePoint.Portal.WebControls.IViewHost.get_SSOApplicationName()
   at Microsoft.SharePoint.Portal.WebControls.IViewHost.OnLoad(EventArgs args)

When I did search, all I could find was IViewHost.OnLoad is reserved for internal use and is not intended to be used directly from code. What is this error all about? Do I need to take any action to resolve this? Pls help.

Thanks!