Open ex 3
Go to Logout proc and add a message to the validate update embed, where you delete de session, to verify if its working.
Compile and all ok the message in logout is executed.
Go to the WebServer extention
Styles tab and check reset to defalult in all tabs, Site Browse, Form, etc
Compile and the code in Logout is not executed
Go back the reset to default uncheking and the error continues.