When I open old scenes recorded with network rendering under 3dsmax backburner, I cannot deactivate this rendering, even if my selected rendering engine is Vray, and network rendering is not activated, I inevitably end up with on the 3dsmax Backburner network render window (I'm not talking about Vray's DR). To get around the problem I have to open an empty scene and merge this scene into it, and there I get the ability to render via Vray normally. I obviously suspect that this is more of a 3dsmax problem than Vray, but I'll still ask just in case.