TC9.1: The object invoked has disconnected from its clients.

I'm getting this error when accessing properties of MSAA objects in our C++ app.  When I run the tests from Test Complete on my own machine, everything is fine and I can access the MSAA properties just fine.  However, when I run tests from VMs using Test Execute, I'm getting this error most of the time, but not always.



The object invoked has disconnected from its clients



The line that has the error just acceses the "Location" property of an object, something like this:

  if ((objItem.Location.SLeft==0 &&

      objItem.Location.Width==0 &&

      objItem.Location.STop==0 &&

      objItem.Location.Height==0))

      return false;



As I said, it works fine from Test Complete, but fails in Test Execute.  We are using version 9.20 of both.



Any advice??