>>>>Mike,
>>>>
>>>>Is the screen built with @GET? If that the case, turn off Themes.
>>>
>>>No, the screens were all built with the Form Builder. Maybe the buttons, or the forms themselves, have some properties that need to be changed.
>>
>>I would try to turn Themes off anyway, to see if it fixes the problem.
>
>I must have doubled up my stupid pills. I can't see a way to turn off themes, only switch to a different theme.

You can try in VFP first

_Screen.Themes = .F.