If your _Screen is ON, try

_screen.backcolor=rgb(n1,n2,n3)

...in your startup PRG



>I created an application using the wizard, all is good except I am unable to change the background of the topform. I created a toplevel app and changes to the background color property of app_topform have know effect. However I can draw lines and place objects on this fomr with no problem.
>
>Any help would be appreciated.
>
>cheers