Thanks Bob,

That is exactly the thread I remembered but I searched under the wrong heading. I thought then that this was an obscure Display and feel that a review would be useful. I have re-set the settings back to the default. I will continue to create Mono and Stereo tracks as previously. I did not expect that a tick in the mono box here would affect the main Render > Audio plus VSTi/DXi tracks to Stereo Wave creation

Thanks again,

Lyn