After compiling, Teststand gives a runtime error of 'No such Interface supported'. If I shut everything down and recompile, or not run with VB in the background, it works fine again. What causes this?
This seems to be similar to your problem so I wonder if they are related at all. Are you developing VB code for your test steps? Are you seeing this error from the VB operator interface code? The improved functionality of the code when VB is active in the background may point to something usual happening on when a new display is being drawn on screen. If you tell us a little more about your project we can attemt to debug further.
