03-21-2007, 11:31 PM
This may have been fixed in the latest update, but I don't remember. It has been narrowed to some sort of memory leak when opening the Dreamscape dialog. The work-around is to set up your scene with your Dreamscape dialog, then save and close the Max scene. After reopening, DO NOT open the Dreamscape dialog before rendering. This is supposed to stop any render flickering.