Thanks to all who responded.

I found the problem. It would work durning development because I have a program to set up a test environment without full starting the applicaion.
It would not work at run time. It turns out that original developer had the line

goApp.SetCaption("title")

in the run time start up program. Changed to use my vaiable instead of hard coded title and it worked as desired

>

_SCREEN.Caption = "My New Caption"

>
>>I just cannot remember if this can be done and if so how. I have anpplication where I want to display the application name and site is is be used at (get that when user logs in). So it the top tiltle line would be something like
>>

>>     This application (at site)
>>

>>where site is a value looked up in a table. so I would define it as
>>

>>     title = 'application (at ' + site +')'
>>

>>Can this be done and if so how?