Thank you for your answer, Jörg.

SET CONSOLE ON did the trick.
Please se my reply to Dragan.

Gerhard

>>Hello!
>>
>>When my application is started, I check to see if any changes are needed, such as structural adjustments. If so, subroutines are run to make the adjustments. At the beginning of each subroutine a message with "? description" is displayed.
>>This has worked for years, but suddenly the messages are no longer displayed on the screen. But the functions are executed.
>>I have already tried ACTIVATE SCREEN and SET ALTERNATE ON without success.
>>WAIT WINDOW is displayed correctly though.
>>Any idea what is going wrong here?
>>
>>TIA
>>Gerhard Schmidbauer
>
>Maybe your _screen.ForeColor has switched to white?