Press the OSD Menu button 
on bottom right of your VSD243 to launch the OSD configuration screen.
Use the arrow keys until you have highlighted “memory recall”
Press the Select button 
This will restore screen image to colour.
Press the OSD Menu button on bottom right of your VSD243 to launch the OSD configuration screen.
Use the arrow keys until you have highlighted “memory recall”
Press the Select button
This will restore screen image to colour.